Session Index

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