Session Index

Photovoltaic Technology

Poster Session I
Thursday, Dec. 7, 2017  12:30-14:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-THU-P0901-P001
Jia Xing Li Award Candidate Ultrafast Carrier Dynamics in Perovskite Solar Cells under Light Irradiation
Jia Xing Li;Tzu Pei Chen

Here we present the implications of energy transfer in photoinduced degradation of perovskite solar cells by discussing the hot carrier relaxation via broadband femtosecond pump-probe spectroscopy.

Paper No.  2017-THU-P0901-P002
Shih-Yuan Chen Award Candidate Application of high-performance Ti-doped GaZnO transparent conducting thin films on CIGS solar cells
Shih-Yuan Chen

This study reports that the improved optoelectronic characteristics and crystallite quality of GZO film through titanium doping forming the novel Ti-doped GaZnO (GTZO) transparent conductive oxide (TCO) thin films for the TCO application on CIGS solar cells. These thin films are highly favorable and pronouncedly contribute to the performance improvement for solar cell devices.

Paper No.  2017-THU-P0901-P003
Yung-Hao Wang Award Candidate Application of Two Novel Dye Molecules with Donor-Acceptor-Acceptor Configuration as donor in Organic Photovoltaics
Yung-Hao Wang;Ken-Tsung Wong;Yi-Nan Lin;Ya-Ze Li;Chun-Kai Wang;Sajal Biring;Jing-Lin Hsieh;Meng-Zhen Li;Shun-Wei Liu;Chih-Chien Lee;Yi-Hau Li

In this letter, the authors present a highly efficient small-molecule organic photovoltaics with a donor-acceptorbulkheterojunction as the active layer. Thedevicesexhibithighest power conversion efficiency of 8.01%, the open circuit voltage of 0.96 V, the short-circuit current density of 14.12 mA/cm2, and the fill factor of 60.37%.

Paper No.  2017-THU-P0901-P004
Chia-Hsun Chen Award Candidate Hole Mobility of 9,10-Di-(2’- naphthyl) anthracene with Metal-Insulator-Semiconductor Charge Extraction by Linearly Increasing Voltage Measurement
Chia-Hsun Chen;Tien-Lung Chiu;Chi-Feng Lin;Jiun-Haw Lee

Hole mobility (uh) of 9,10-Di-(2’- naphthyl) anthracene (ADN) was measured with metal–insulator– semiconductor charge extraction by linearly increasing voltage method, which was uh=8.37*10-6 cm2/Vs at the electric field of 0.4M V/cm.

Paper No.  2017-THU-P0901-P005
Teja Avula Award Candidate Fabrication of High Efficiency Single Halide Lead Perovskite Solar cells by Sandwich Deposition Technique
Teja Avula;Ching-fuh Lin

In this research, we discuss the sandwich deposition technique and its influence on efficiency of perovskite solar cells. The CH3NH3PbI3 perovskite film of the optimal thermal annealing temperature for 50mins would significantly yield higher short circuit current density (Jsc) = 22.88mA/cm2, Voc = 0.87V, FF = 74.24 and PCE=14.93%, respectively.

Paper No.  2017-THU-P0901-P006
Wei-Lien Wang Award Candidate Current-Matching Improvement of Triple-Junction GaAs Solar Cells Using Ag NPs on Matrix-Patterns TiO2 Space Layer
Wei-Lien Wang;Wen-Jeng Ho;Jheng-Jie Liu

This study reports the photovoltaic performance-enhancement of triple-junction GaAs solar cells due to current-matched improving by silver nanoparticles (Ag-NPs) on a matrix-pattern TiO2 space layer. The enhanced efficiency from 22.15% to 23.37% due to current-matched improving was obtained for cell with Ag-NPs a matrix-pattern TiO2 with 60% coverage level.

Paper No.  2017-THU-P0901-P007
Chia-Hsun Chen Award Candidate Nanostructure Molybdenum Trioxide Layer for Efficient Organic Solar Cell
Chien-Liang Lin;Tien-Lung Chiu;Chia-Hsun Chen;Jiun-Haw Lee

A nanostructure molybdenum trioxide (MoO3) layer could be formed and controlled by varying deposition rate during film deposition. Using two step deposition (1 Å/s and 0.5 Å/s) to form a nanostructure MoO3 layer as the anodic buffer layer, with this, the organic solar cell performed an improved power conversion efficiency.

Paper No.  2017-THU-P0901-P008
Yu-Cheng Kao Award Candidate Processing development and properties study of parallel-type thin film GaAs solar cells
Yu-Cheng Kao;Yu-Han Fu;Dong-Sing Wuu;Ray-Hua Horng

The substrate of solar cell was transferred from GaAs to Ni, in order to manufacture thin photovoltaic devices. The SiO2 passivation was deposited on the channels between cells to prevent the leakage current. Finally, the bus bars on the solar cells were connected via the metal deposition.


Photovoltaic Technology

Photovoltaic Students Paper Award Competition I
Thursday, Dec. 7, 2017  13:00-14:45
Presider: Jyh-Jier Ho
Room: International Research Building IR6002-C(6F)
13:00 - 13:30 Paper No.  2017-THU-S0901-I001
Invited Speaker:
Wallace C.H. Choy
Novel Green Room-Temperature Solution-Processed Metal Oxides for High Performance Optoelectronic Devices
Wallace C.H. Choy

While high temperature evaporation and sputtering are commonly used for forming metal oxide semiconductors, we will discuss our room-temperature solution approaches for forming various metal oxides. To demonstrate their good electron and hole transport properties, we will use them for all solution-procesed organic/inorganic optoelectronics such as organic solar cells (OSCs), perovskite solar cells, dye sensitized solar cells, organic light emitting diodes, etc which can favor the efficient transport of carriers between the photoactive layer and electrode as well as high optical transparency. Transition metal oxides are promising materials for carrier transport layers because of their good electrical properties, stability, and optical transmission. We propose and demonstrate several low-temperature solution-processed approaches for forming transparent and efficient metal oxide-based carrier transport layers including electron and hole transport layers [1-6]. With the incorporation of metal nanoparticles [7-10], the electrical and optical properties can be enhanced. The interesting features of the novel carrier extraction layers are low temperature, solution process and water free for high performance optoelectronics such as OSCs with power conversion efficiency (PCE) of 10.5% [1-10]. In addition, we have developed some room-temperature processed Ag nano-network which can serve as transparent flexible electrodes [11]. With the knowledge of solution processed organic and inorganic materials, we also propose different approaches for highly stable and efficient perovskite SCs [12] with no hysteresis and most recent PCE of 20.5%.

13:30 - 14:00 Paper No.  2017-THU-S0901-I002
Invited Speaker:
Bin Hu
Bin Hu


14:00 - 14:15 Paper No.  2017-THU-S0901-O001
Yu Cheng Award Candidate Dielectric Barrier Discharge (DBD) Processed CH3NH3PbI3 Layer for Perovskite Solar Cells
Yu Cheng;Zhen-Chun Chen;Chan-Cheng Lin;Jui-Hsuan Tsai;Cheng-Che Hsu;Jian-Zhang Chen;Chih-I Wu;I-Chun Cheng

Dielectric barrier discharge (DBD) is used to treat the methylammonium lead iodide perovskite absorber layer. DBD reactive plasma species can remove the residual organic precursors, enhance interface conductivity, and diminish the remnant amorphous carbon of the perovskite absorber layer, thereby improving the performance of perovskite solar cells.

14:15 - 14:30 Paper No.  2017-THU-S0901-O002
Wei-Cheng Hsieh Award Candidate Improve Surface Defects by Applying Silver Nanowires in Organic Hybrid Silicon Solar Cells
Yi Lai;Hong-Jhang Syu;Wei-Cheng Hsieh;Ching-Fuh Lin

We propose methods of enhancing the efficiency of organic hybrid silicon solar cells. The organic material has large absorption of light. To solve this problem, PEDOT:PSS is diluted using IPA before it is deposited. Then, we use silver nanowires to improve the contact between PEDOT:PSS and front electrode.

14:30 - 14:45 Paper No.  2017-THU-S0901-O003
Ching-Wen Wu Award Candidate Large-Area Hybrid PEDOT:PSS/Si Solar Cells Using Blade Coating
Ching-Wen Wu;Pei-chen Yu

We employed CNT-doped PEDOT:PSS as the hole conducting material and developed blade coating technique to scale up. Furthermore, we optimized CNT-doped PEDOT:PSS with surfactant and ethanol and successfully achieved a power conversion efficiency of 13.5% on a 2x2 cm2 device at the 400 mm/sec coating speed


Photovoltaic Technology

Photovoltaic Students Paper Award Competition II
Thursday, Dec. 7, 2017  15:15-17:00
Presider: Wallace C.H. Choy
Room: International Research Building IR6002-C(6F)
15:15 - 15:45 Paper No.  2017-THU-S0902-I001
Invited Speaker:
Tatsuo Mori
Effect of Air-Flow and Solvent Annealing on Active Layer for Organic Perovskite Solar Cells
Tatsuo Mori

Organic perovskite solar cells are one of attractive solar cells in the viewpoint of low cost and comparatively high power conversion efficiency. They easily influence the fabrication process. In this study, the air-flow process to perovskite active layer and to solvent annealing are introduced. And the air-flow process is effective for manufacturing high-performance devices. Key Word—Organic Perovskite Solar Cells, Air-Flow, Solvent annealing, Crystal Domain.

15:45 - 16:00 Paper No.  2017-THU-S0902-O001
Tsung-Yin Tsai Award Candidate A novel design of intermediate band solar cell with multi-layer MoS2 nanoribbons
Tsung-Yin Tsai;Shuo-Fan Chen;Yuh-Renn Wu

MoS2 armchair nanoribbon structures has been found to form middle bandgap, which has the lowest energy states at X-valley. This will prevent carrier to recombine with hole in the valence band, which would be an excellent material in Intermediate solar cell. The optimized performance of this structures has been investigated.

16:00 - 16:15 Paper No.  2017-THU-S0902-O002
Govindasamy Madhaiyan Award Candidate Self-Powered Ultrasensitive Gas Sensor Based on Bilayered-Metal-Capped Organic Diode
Govindasamy Madhaiyan;Hsiao-Wen Zan;Hong-Cheu Lin;Chao-Hsuan Chen;Hsin-Fei Meng;Ping-Hung Yeh

We Proposed a sensitive gas sensor with bilayered metal capped diode to deliver response to 100-ppb ammonia at 0.5 V. The bilayer metal successfully forms numerous pores to allow the gas penetration and realize the ppb-regime. Finally, the self-powered sensor is demonstrated by connecting with an OPV device.

16:15 - 16:30 Paper No.  2017-THU-S0902-O003
Yu-Ming Huang Award Candidate Application and Effect of Colloidal Quantum Dot on the GaAs-based Solar Cell
Yu-Ming Huang

In this paper, we try to combine the colloidal CdTe quantum dot and the single junction GaAs-based solar cell together. Therefore, we introduce you three come-ups to manage to achieve our purpose to make J-V characteristics better.

16:30 - 16:45 Paper No.  2017-THU-S0902-O004
Yue-Chieh Yang Award Candidate Photovoltaic Performance of Textured Silicon Solar Cell Using Indium Nanoparticles Embedded within SiNX/SiO2 Double-Layers Antireflection Coating
Wen-Jeng Ho;Yue-Chieh Yang;Jheng-Jie Liu

Indium nanoparticles (In NPs) embedded within a double-layer (SiNX/SiO2) anti-reflection coating to enhance photovoltaic performances of the textured silicon solar cells under various incident illuminated-angles are demonstrated. The conversion-efficiency enhanced 7.07% (from 13.85% to 14.83%) under AM 1.5G normal simulation was obtained, compared to the reference cell without In NPs.

16:45 - 17:00 Paper No.  2017-THU-S0902-O005
Wei-Chen Tsao Award Candidate Compact solar for III-V CPV
Wei-Chen Tsao;Ciou-Chon Zeng;Chih-Ming Wang

The aim of this experiment is to develop a micro-CPV solar cell under both direct illumination and scattering illumination, simultaneously. For simultaneously harvesting the direct and scattering solar light, a low cost solar cell is applied for harvesting scattering light while III-V solar cell is utilized for harvesting the direct-illumination.


Photovoltaic Technology

Poster Session II
Thursday, Dec. 7, 2017  15:30-17:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-THU-P0902-P001
Mu-Wen Lin Thermoelectric Module Integrated with Spectrum-Beam-Splitting Solar System to Exploit Infrared Energy
Mu-Wen Lin;An-Chi Wei;Jyh-Rou Sze

This study applies thermoelectric devices in a spectrum-beam-splitting solar system. In this system, the sunlight is divided to infrared and non-infrared light, and the thermoelectric devices collect infrared light through temperature difference to generate voltage.

Paper No.  2017-THU-P0902-P002
Chien-Hung Kuo The Effect on Electrochemical Impedance Spectroscopy for Dye-Sensitized Solar Cell Under Low Illumination Intensity
Chien-Hung Kuo;Jung-Chuan Chou;Chih-Hsien Lai;Yi-Hung Liao;Cheng-Chu Ko

In this paper, we investigated the influences on electrochemical impedance spectroscopy for dye-sensitized solar cell under low illumination intensity. According to experiment results, the resistance of interface between electrolyte and TiO2 film(R2) increases with illumination intensity increasing.

Paper No.  2017-THU-P0902-P003
Yijia J Chen Effect of Secondary Coating Treatment of TiO2 Anode on the Performance of Perovskite Solar Cells
Hong-Syuan Lin;Yijia J Chen

The novel secondary coating treatment of TiO2 anode of the perovskite solar cell significantly enhanced the photovoltaic efficiency of the solar cell by a factor of two. We revealed that the root cause of the enhancement should resort mostly to the conductivity improvement of the TiO2/perovskite interface.

Paper No.  2017-THU-P0902-P004
Yu-Hsien Chiang All-inorganic selective contacts with microwave-synthesized oxide nanoparticles for highly stable perovskite solar cells
Yu-Hsien Chiang;Tzung-Fang Guo;Peter Chen

We report a novel and highly stable perovskite solar cell using inorganic electron transporting layer by solution-processed IZO nanoparticles. Combining with NiO as hole transporting layer, the all-inorganic selective contacts perovskite solar cells demonstrate power conversion efficiency over 16% and remain 85% of initial efficiency after 460 hours light soaking.

Paper No.  2017-THU-P0902-P005
Ming-Hsien Li Robust nanoporous counter electrode for organic hole conductor free monolithic perovskite solar cells with substrate recyclability
Ming-Hsien Li;Yu-Syuan Yang;Kuo-Chin Wang;Yu-Hsien Chiang;Po-Shen Shen;Wei-Chih Lai;Tzung-Fang Guo;Peter Chen

A robust and recyclable monolithic substrate applying all-inorganic metal-oxide selective contact with nanoporous counter electrode is successfully demonstrated for efficient perovskite solar cells. The original device with 8.52% PCE can be rejuvenated by rinsing off perovskite material with DMF and refilling with newly deposited perovskite to deliver comparable performance.

Paper No.  2017-THU-P0902-P006
Ming-Ju Wu Semitransparent Perovskite Solar Cells and their Tandem Structures Assembled with Si Cells
Ming-Ju Wu;Fang-Chung Chen

In this work, we mix Cs ion in perovskite for fabricating semitransparent perovskite solar cells. Then, the perovskite cell was stacked on a single crystal silicon solar cell by using UV-curable epoxy. The stacking four terminal tandem solar cell yield a summed efficiency of 13.64%.

Paper No.  2017-THU-P0902-P007
Yun Da Chuang Mixed the Cobalt and Carbon Counter Electrodes for Dye Sensitized Solar Cells
Chi Feng Lin;Yun Da Chuang;Ci Wun Chen;Hsieh Cheng Han;Kuo Yuan Chiu;Tian You Cheng

We demonstrated sensitized solar cells with new type counter electrodes consist with cobalt and carbon. After modified the mixing ratio and annealing temperature, the optimums device showed the short-circuit current of 13.88 mA/cm2, open-circuit voltage of 0.78 V, fill factor of 68.1% and the highest power conversion efficiency of 7.4%.

Paper No.  2017-THU-P0902-P008
Chih-Hung Tsai Reduced Graphene Oxide/Macrocyclic Cobalt Complex Nanocomposites as Counter Electrodes for Pt-free Dye- Sensitized Solar Cells
Chun-Jyun Shih;Wun-Shiuan Wang;Wen-Feng Chi;Wei-Chih Huang;Yu-Chung Hu;Yuan-Hsiang Yu;Chih-Hung Tsai

Macrocyclic Co complexes were successfully grafted onto graphene oxide to produce GO/Co nanocomposites with a large surface area, high electrical conductivity, and excellent catalytic properties. The results showed that the GO/Co (1:10) counter electrode exhibited an optimal power conversion efficiency of 7.48%, which was higher than that of the Pt.

Paper No.  2017-THU-P0902-P009
Dong Lin Tang Dye-Sensitized Solar Cells with New Type Dye Materials
Chi Feng Lin;Dong Lin Tang;Kuo Yuan Chiu;Hsin Shaw;Yuhlong Oliver Su;Hsieh Cheng Han

This study demonstrated the new-type materials served as absorption layer in dye-sensitized solar cells. It showed good performance on short-circuit current and open-circuit voltage of devices. The optimums device showed performance of 6.28% in power conversion efficiency, which was similar to the device efficiency of DSSC with conventional N719 dye.

Paper No.  2017-THU-P0902-P010
Hung-Ting Lin Eco-friendly Carbon Quantum dots Films for Down-conversion in Organic Photovoltaics
Hung-Ting Lin

Carbon quantum dots (CDs) have been encapsulated within a polymer matrix to form a luminescent down-conversion layer. Our CDs can emitted green light by absorbing ultraviolet light which organic photovoltaics cannot utilize. We expect that by using the CDs films can enhance the response of organic photovoltaics in ultraviolet wavelength.


Photovoltaic Technology

Hybrid Solar Cells
Friday, Dec. 8, 2017  08:30-10:15
Presider: Tzung-Fang Guo
Room: International Research Building IR6002-C(6F)
08:30 - 08:45 Paper No.  2017-FRI-S0903-O001
Jing-Rong Cheng Solution-Processed Perovskite Solar Cells on Flexible Substrates
Jing-Rong Cheng;Chia-Shuo Li;Te-An Yu;Chih-I Wu

With the aim of flexible photovoltaic devices, we synthesize low temperature processed (LTP) TiO2 nanoparticles as electron transport layer (ETL) . The optimized power conversion efficiency (PCE) on ITO/glass substrate is 13.42% which is slightly less than high temperature process (HTP). PCE of devices on the ITO/PEN substrate is 10.44%.

08:45 - 09:00 Paper No.  2017-FRI-S0903-O002
Sheng-De Wong Effects of iodobenzene volume on the optoelectronic properties of MAPbI3 perovskite thin films and their application in solar cells
Sheng-De Wong;Wei-Chen Huang;Sheng-Hui Chen;Sheng Hsiung Chang

he optoelectronic properties of MAPbI3 thin films were manipulated by using different iodobenzene volumes, which dominates the performance of MAPbI3 solar cells. The grain size of MAPbI3 films influences the collection of carriers and the contact at the PCBM/MAPbI3 interface, thereby resulting in a trade-off between the FF and JSC.

09:00 - 09:15 Paper No.  2017-FRI-S0903-O003
Chih Lin Chiu Surface Textured Hybrid PEDOT:PSS-Silicon Solar Cells Employing Kirigami Graphene
Pei Chen Yu;Chih Lin Chiu

we demonstrate the conformal coverage of patterned kirigami graphene layers on surface textured hybrid PEDOT:PSS-silicon solar cells to enhance collection of charge carriers. As a result, the photovoltaic characteristics of hybrid solar cells are largely improved, showing enhancement of fill factor and power conversion efficiency by 3.3% and 9.8%

09:15 - 09:30 Paper No.  2017-FRI-S0903-O004
Muhammad Khairuddin Investigating the Performance of Dye Sensitized Solar Cell for Indoor Photovoltaic System under Fluorescent Lamps with Diverse Color Temperatures
Muhammad Khairuddin;Hsiao-Yi Lee

This paper proposes the best CCT to be utilized for indoor PV system. The performance of DSSC under fluorescent lamps T5/865 with CCT 6500K and T5/830 with CCT 3000K will be investigated. The results show that T5/830 is slightly better for DSSC’s outcome in indoor use.

09:30 - 10:00 Paper No.  2017-FRI-S0903-I001
Invited Speaker:
Tae-Woo Lee
Polymeric interfacial layers in organic and perovskite photovoltaics
Tae-Woo Lee

Tailoring the interfacial energetics between an electrode and a photoactive layer in organic photovoltaics (OPVs) and metal-halide hybrid perovskite photovoltaics (PePVs) is important to maximize open circuit voltage (Voc) and thereby power conversion efficiency (PCE). Here, we introduced hole- or electron- extracting polymeric interfacial layers to minimize the interfacial energy offset between the electrode and the photoactive layer leading to improved PV characteristics. Although PEDOT:PSS is the most widely used hole extraction layer (HEL), it cannot make Ohmic contact with overlying organic or perovskite photoactive layer due to its low work function (~5.0 eV) leading to decrease in Voc and thereby PCE (PCDTBT and MAPbI3 ~5.4 eV). To overcome the problem, we used self-organized hole extraction layer (SOHEL) which has an increasing gradient WF from bottom to top owing to the gradient concentration of perfluorinated ionomer (PFI) in the film. Use of SOHEL successfully increased Voc and thereby PCE of both organic and perovskite PVs by minimizing energy offset with the photoactive layers. PEDOT:PSS has another problem in terms of aggregation which can degrade PV performance. Therefore, we used a self-doped conducting polymer, PSS-g-PANI, which is soluble in polar solvents. Since PSS-g-PANI also has low work function, nevertheless, PFI was added into PSS-g-PANI to solve the problem of energy mismatch with the photoactive layer. Lastly, improvement in energy level alignment between electron extraction layers (EELs) and a photoactive layer was achieved using solution-processed ultrathin insulating polymer or conjugated polyelectrolytes (CPEs). The insulating polymer, poly(4-hydroxystyrene) (PHS), was found to form a dipole layer that upshifts the vacuum level of the adjacent negative electrode. CPEs (PSBFB-Na, PAHFP-Br) also decreased energy barrier between Al electrode and a photoactive layer. In addition, the ionic groups in the CPEs further improved energy level alignment at the interface after electric-polling which led to redistribution of them. Therefore, the use of PHS or CPE interlayer significantly improved the built-in potential, Voc and PCE of devices.

10:00 - 10:15 Paper No.  2017-FRI-S0903-O005
Wei-Cheng Hsieh Efficiency Variation of Single Halide Lead Perovskite Solar cells by Sandwich Deposition Technique
Chun-Hsiao Kuan;Po-Tsun Kuo;Wei-Cheng Hsieh;Ching-Fuh Lin

In this research, we discover the perovskite solar cell has the best efficiency 7-10 days after it is fabricated. After being kept in vacuum condition, the solar cell performed the best after several days. The CH3NH3PbI3 perovskite solar cell has Jsc=23.79mA/cm2, Voc=0.9V, FF= 76.2 and PCE= 16.43% respectively.


Photovoltaic Technology

Poster Session III
Friday, Dec. 8, 2017  12:30-14:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-FRI-P0903-P001
Kai-Wei Yang Analysis on Optical Emission Spectroscopy of CIGS Thin Films Prepared by DCMS, PMS and HPPMS process
Chien-Jen Tang;Kai-Wei Yang;Ching-Tang Li;Chia- Chun Wu;Ying-Xiang Liao;Wei-Hsuan Hsu;Ju-Liang He;Kuo-Feng Chiu

Cu(In,Ga)Se2 (CIGS) thin films were deposited by the sputtering of single quaternary target in DCMS, PMS and HPPMS. Optical Emission Spectroscopy was used to analyze the emission intensity of different plasma species for DCMS, PMS and HPPMS process. The characterizations of film and analysis of device were discussed.

Paper No.  2017-FRI-P0903-P002
Ting An Lee The Characteristics of Luminescent Solar Concentrators (LSCs) using Inorganic Phosphors
Ting An Lee;Ping Shang Ying

The ray-tracing simulation is used to investigate the optical characteristics of the LSC with the inorganic phosphors thin film on the top surface of the transparent plate. The simulation will also be used to study the use of mirror on the side and bottom surfaces of the transparent plate

Paper No.  2017-FRI-P0903-P003
Shu-Wei Guo Colorful Selectivity of Microcavity Structures Perovskite Solar Cells for Building-integrated Photovoltaic
Shu-Wei Guo;Hsi-Chao Chen;Bo-Jian Qiu;Ming-Sian Yan;Chun-Hao Chang

In this research, the microcavity structures was used to selectable the variant spectrum of perovskite solar cells for building-integrated photovoltaic. The thickness of the dielectric layer was controlled to achieve a variety of different high purity of colors. The spectral transmittance curves of perovskite photovoltaic was simulated by Essential Macleod.

Paper No.  2017-FRI-P0903-P004
Chao-Hong Wang The application of the sol-gel process ZnO electrode buffer layer in the inverted solar cells
Chao-Hong Wang;Mei-Ying Chang

In this study, we use the sol-gel method to deposit the ZnO film for the electrode buffer layer in the inverted bulk-heterojunction solar cells. Take different concentration of ZnO solution whose solute ratio is 1:1.2 ( ZAD:MEA ) to obtain the ZnO film, then compare the divergence of the film

Paper No.  2017-FRI-P0903-P005
Yu-Cheng Li Study on Graphene and Platinum Composite Materials as Counter Electrodes for Dye-Sensitized Solar Cells
Yu-Cheng Li;Chih-Hung Tsa

A series of graphene and platinium composite materials were prepared and used as counter electrodes for dye-sensitized solar cells. Among the various GN/Pt CEs, GN/Pt (1:6) composite materials yielded the optimal electrochemical catalytic properties and device efficiency. DSSCs fabricated with the GN/Pt (1:6) composite CEs yielded an efficiency of 9.29%

Paper No.  2017-FRI-P0903-P006
Hsiao-Lung Hsu Investigation of Adding Graphene Nanosheets in Liquid Electrolytes to Improve the Efficiency of Dye-Sensitized Solar Cells
Chih-Hung Tsai;Ping-Yuan Chuang;Hsiao-Lung Hsu

Graphene nanosheets were added in liquid electrolytes to increase the conductivity of the electrolyte and improve the efficiency of dye-sensitized solar cells. The DSSC device with the 20-mg graphene electrolyte solution attained the highest efficiency (9.26%), which was 20% higher than that of the device with the non-graphene electrolyte solution.

Paper No.  2017-FRI-P0903-P007
Jian Sheng Xie Su A Study of Encapsulation Material for Photovoltaic Module and Potential Induced Degradation
Jian Sheng Xie Su;Wen Kuei Lee;Mei Hsiu Lin;Chen Lung Huang

We studied EVA and Polyolefin as the encapsulation material of a photovoltaic module, which can resist potential induced degradation. The PID test results showed that Polyolefin presented a good performance for crystalline PV module because the volume resistivity of the polyolefin material was higher than that of the EVA material.

Paper No.  2017-FRI-P0903-P008
Kuan-Wei Chen Solution-process of molybdenum oxide with different concentrations in inverted organic solar cells
Kuan-Wei Chen;Kuo-Yu Hsu;Tzu-Sheng Huang;Mei-Ying Chang

In this study, we mix the PEDOT:PSS polymer [1] conductive solution with Molybdenum oxide nanoparticle (MoOx NPs) solution [2] in different volume percentages, 0%, 5%, 10%, 20%, 30%. In different percentage, it reveals different performances, such as efficiency, open circuit voltage short circuit current density and high stability.

Paper No.  2017-FRI-P0903-P009
Peng Yi Study Optical and Electrical Properties of Inorganic Phosphor for Luminescent Solar Concentrator
Bing-Mau Chen;Peng Yi;Yu-Ching Chu;Wan-Tian Tseng;Shang-Ping Ying

This study proposes the inorganic phosphor used in luminescent solar concentrator (LSC) for the luminescent material. The transmittance and electrical properties can be controlled by inorganic phosphor layer thickness. The maximum power of inorganic phosphor layer LSC can increased more than 2 times that of without phosphor layer.


Photovoltaic Technology

Novel Photovoltaic Technology I
Friday, Dec. 8, 2017  13:00-14:30
Presider: Wen-Yao Huang
Room: International Research Building IR6002-C(6F)
13:00 - 13:15 Paper No.  2017-FRI-S0904-O001
Subha Prakash Mallick Neutron Irradiation Induced Defects upon Minority Carrier Lifetime in Si Solar Cell
Subha Prakash Mallick;Durga Prasad Dash;Sandipan Mallik;Rakesh Roshan;Shrabani Mahata;Palash Das;Satya Sopan Mahato

Effects of neutron irradiation upon carrier lifetime incorporated with change in recombination rates; consequence displacement damage in Si solar cell. Radiation induced defects are analyzed with change in open circuit voltage, maximum power, and fill factor; cause non uniform rise in reverse saturation current(J0) with fall in open circuit voltage(Voc).

13:15 - 13:30 Paper No.  2017-FRI-S0904-O002
Wei-Jie Chang Optimized Structure with Diffractive Optical Element for Light-Splitting in Solar system
Wei-Jie Chang;An-Chi Wei;Jyh-Rou Sze

The purpose of this research is to split light into visible light and infrared light. Since the diffractive optical element (DOE) splits the light with different wavelengths to different diffraction angles, it along with other structure will be used for separating infrared and visible portions of white light.

13:30 - 13:45 Paper No.  2017-FRI-S0904-O003
Likarn Wang New Texturing Technique for Diamond Wire Sawn Multicrystalline Silicon Wafers
Likarn Wang;Kang-Pin Lee;Guang-I Yeh

In this study, we work out a wet chemical etching method with which surfaces of DWS multicrystalline silicon wafers can be effectively textured without using sulfuric acid and phosphoric acid and of course without using MCCE or RIE methods.

13:45 - 14:00 Paper No.  2017-FRI-S0904-O004
Forest Shih-Sen SEN Chien Observation of Charge Coupling in InGaP/InGaAs/Ge Triple-Junction Solar Cells by Electric Modulus Spectroscopy
Forest Shih-Sen SEN Chien

Electric modulus (M) spectroscopy incorporated with lasers is demonstrated to be an effective approach to investigate the electrical characteristics of the individual subcells in InGaP/InGaAs/Ge triple-junction solar cells. Charge coupling between the excited and neighboring subcells is observed, which causes the expansion of the depletion region in the latter.

14:00 - 14:15 Paper No.  2017-FRI-S0904-O005
You-Lan Li Solution Process Hybrid Solar Cell In Thin Substrate : Impact of Surface Template And Process Conditions
You-Lan Li;Pei-chen Yu

We use metal-assisted chemical etching (MACE) and rapid thermal anneal (RTA) techniques to fabricate new multi-structure on Si surface. The PCE of new multi-structure on hybrid solar cell can achieve 14.07% by reducing reflectance to 3.61% and enhancing JSC to 33.43 mA/cm2.


Photovoltaic Technology

Poster Session IV
Friday, Dec. 8, 2017  14:30-16:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-FRI-P0904-P001
Yean-San Long Energy Rating of Various PV Technologies under Different Indoor Lighting Conditions
Yean-San Long;En-Yun Wang;Teng-Chun Wu

In this study, we defined and compare the indoor/outdoor and no hysteresis behavior under indoor lighting simulator with solar simulator show different trends depending on the PV device type, which could highlight the specific type of PV that harvests better under indoor lighting and is preferable to indoor.

Paper No.  2017-FRI-P0904-P002
Ching-Tang Li A Comparative Study of CIGS thin film Deposited by DCMS, PMS and HPPMS Process Using Quaternary Target for Photovoltaic Devices
Chien-Jen Tang;Ching-Tang Li;Kai-Wei Yang;Chia-Chun Wu;Ying-Xiang Liao;Ju-Liang He

CIGS absorber layers were deposited by DC, Pulsed DC and high power pulsed magnetron sputtering from single quaternary target. The influence of various sputtering process on conversion efficiency of CIGS solar cells were discussed.

Paper No.  2017-FRI-P0904-P003
Yung Chieh Chern Phase-shifting interferometric microscope with extendable field of view
Yung Chieh Chern;Chao Ting Ma

This research proposes an innovative phase-shifting interference microscope available for profiling micro-structure contours. It is composing of a light source module, phase modulation module, and interferometric module; it achieves the inspections using five-step phase-shifting algorithm; and it possesses the capability to extend its field of measurement.

Paper No.  2017-FRI-P0904-P004
Lee-May Huang The Analysis of Optical Properties of EVA Encapsulant for Photovoltaic Module Encapsulation
Lee-May Huang;Jian-Sheng Xie Su

DSC thermal analysis simulates the thermal history experienced by EVA during the lamination process. The optical properties of two types of commercial EVA are discussed. The thermal behavior of EVA during lamination process is simulated by DSC analysis.

Paper No.  2017-FRI-P0904-P005
Guan-You Lin Influences of sintering temperature on low-cost carbon paste based counter electrodes for dye-sensitized solar cells
Guan-You Lin;Forest Shih-Sen Chien

In this paper we have demonstrated the photovoltaic performance of dye-sensitized solar cells with low-cost carbon paste (CP) based counter electrodes. With sintering CP at 300oC, the overall conversion efficiency of cells can reach 4.9%, which is comparable to 5.7% of the cells with counter electrode of platinum.

Paper No.  2017-FRI-P0904-P006
Meng-Hsuan Lin The Usage of LBIC for Characterization of Solar Cells
Meng-Hsuan Lin;Shang-Ping Ying

A light beam induced current (LBIC) system with high resolution was designed and constructed to characterize the Si solar cells in this study. The infrared (IR) thermography and electroluminescence (EL) measurements were also carried on to verify the use of LBIC measurement for solar cells.

Paper No.  2017-FRI-P0904-P007
Tzu-Fan Hsu Application of ZnO Nanopowder in Dye-sensitized Solar Cell
Yueh-Chien Lee;Sheng-Yao Hu;Cheng-Han Wu;Tzu-Fan Hsu

ZnO nanopowder produced by the technique of microwave-assisted synthesis deposited on the ITO substrate are utilized to be the electrode for the dye-sensitized solar cell (DSSC). Structural, optical, and electrical properties in the ZnO nanopowder-based DSSC will be analyzed and discussed.

Paper No.  2017-FRI-P0904-P008
Yu-Nan Liu Improvement of the efficiency of solar cell by use of intermittent lighting
Hsiao-Yi Lee;Yu-Nan Liu;Yu-Jen Liu;Yi-Chian Chen;Hsin-Yi Ma

An alterable frequency pulse width modulation driver for white LEDs is presented in this study. The frequency and duty cycle of led driver are adjustable, this function can be used to increase LED efficiency and it makes more energy generated from dye-sensitized solar cell.

Paper No.  2017-FRI-P0904-P009
Cheng-Yi Hsu Optimal Design of High Concentration Reflected Photovoltaic Module
Cheng-Yi Hsu;Yu-Chin Chou;Yuli Lin

In this study, a new design of high concentration reflected photovoltaic (HCRPV) using 3x3 array modules with the light guide tube and III-V solar cells are demonstrated. Results show that the power can be measured to be 2.62W~2.74W, which is about 90% of the power of solar cell (3W) used.


Photovoltaic Technology

Novel Photovoltaic Technology II
Friday, Dec. 8, 2017  14:50-16:20
Presider: Mei-Ying Chang
Room: International Research Building IR6002-C(6F)
14:50 - 15:05 Paper No.  2017-FRI-S0905-O001
Hsin Han Lai Dye Loading and Short-Circuit Current Density Increased by Adding Nitric Acid with Multi-Layer Structure Applied for Dye-Sensitized Solar Cells
Hsin Han Lai;Hsueh-Tao Chou;Shi-Ting Chen;Chun-Hsin Wang;Zheng-Yue Chen;Ho-Chun Hsu

A compact layer is used to reduce the contact resistance, the dye loading is increased by adding nitric acid(HNO3), and the scattering layer is applied to enhance the scattering effect. The DSSC with the multi-layer structure of Compact/P25+HNO3/Scattering based photoanode shows an optimum short-circuit current density and energy conversion efficiency.

15:05 - 15:20 Paper No.  2017-FRI-S0905-O002
Kuan-Min Huang Blade Coating Large-Area Organic Solar Cells With Active Area of 216 cm2
Kuan-Min Huang;Hsin-Fei Meng;Hsiao-Wen Zan

Large-area organic solar panel with total active area of 216 cm2, including 16 cells connected in series. The efficiency of 5.9 % is reached for opaque panel illuminated by halogen lamp of 120,000 lux and 7.2% after calibration. For semi-transparent panel, 4.1% efficiency (4.9% after calibration) is reached.

15:20 - 15:35 Paper No.  2017-FRI-S0905-O003
Subha Prakash Mallick Mathematical Modeling and Differential Evolutionary Approach to SPICE Unified Multijunction Solar Cell
Subha Prakash Mallick

This paper depicts over the SPICE unified mathematical modeling; prevails over the use of lumped circuit model analysis of electrical performances in solar cell and limitations behind carrier generation and recombination in depletion region. Performance analysis, parameter extraction are followed by Differential Evolutionary Approach, Gauss Newton and Numerical techniques.

15:35 - 15:50 Paper No.  2017-FRI-S0905-O004
Likarn Wang Wet Chemical Method for Growing Aluminum Oxide: A Negative Charge Film or a Back Surface Field for Crystalline Silicon Solar Cells ?
Likarn Wang;Yu-Ren Huang;Chen-Yu Wei;Chia-Po Lin

We present the results of growing aluminum oxide layers on rear sides of crystalline silicon solar cells with our wet chemical method. The chemical method can be used for mass production of aluminum oxide layers as an important passivation layer for today’s PERC solar cells.

15:50 - 16:05 Paper No.  2017-FRI-S0905-O005
Yu-Ting Hu Planar waveguide solar concentrator with symmetric air prisms as couplers
Yu-Ting Hu;Gui-Sheng Zeng;Sheng-Hui Chen

Symmetric air prisms were designed as the light couplers of a concentrator photovoltaics (CPV) system to increase the optical efficiency. The CPV system consists of a Fresnel lens with the planar waveguide coupler modeled and simulated by using ray tracing. Finally, a high efficiency and good uniformity concentrator was achieved.

16:05 - 16:20 Paper No.  2017-FRI-S0905-O006
Ching-Pao Sun Passivation of Interdigitated Back Contact Solar Cells by Graphene Oxide
Ching-Pao Sun;Yi-Chin Chen;Kuan-Yu Chen;Chu-Hsuan Lin

In this study, graphene oxide is used to passivate interdigitated back contact solar cells. The efficiency of solar cells can be effectively increased due to the lifetime enhancement contributed by graphene oxide on the surface.