標題: Blade-coated sol-gel indium-gallium-zinc-oxide for inverted polymer solar cell
作者: Lee, Yan-Huei
Tsai, Pei-Ting
Chang, Chia-Ju
Meng, Hsin-Fei
Horng, Sheng-Fu
Zan, Hsiao-Wen
Lin, Hung-Cheng
Liu, Hung-Chuan
Tseng, Mei-Rurng
Yeh, Han-Cheng
物理研究所
光電工程學系
Institute of Physics
Department of Photonics
公開日期: 1-Nov-2016
摘要: The inverted organic solar cell was fabricated by using sol-gel indium-gallium-zinc-oxide (IGZO) as the electron-transport layer. The IGZO precursor solution was deposited by blade coating with simultaneous substrate heating at 120 degrees C from the bottom and hot wind from above. Uniform IGZO film of around 30 nm was formed after annealing at 400 degrees C. Using the blend of low band-gap polymer poly[(4,8-bis-(2-ethylhexyloxy)-benzo(1,2-b: 4,5-b')dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene-)-2-6-diyl)] (PBDTTT-C-T) and [6,6]-Phenyl C71 butyric acid methyl ester ([70] PCBM) as the active layer for the inverted organic solar cell, an efficiency of 6.2% was achieved with a blade speed of 180 mm/s for the IGZO. The efficiency of the inverted organic solar cells was found to depend on the coating speed of the IGZO films, which was attributed to the change in the concentration of surface OH groups. Compared to organic solar cells of conventional structure using PBDTTT-C-T: [70]PCBM as active layer, the inverted organic solar cells showed significant improvement in thermal stability. In addition, the chemical composition, as well as the work function of the IGZO film at the surface and inside can be tuned by the blade speed, which may find applications in other areas like thin-film transistors. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
URI: http://dx.doi.org/10.1063/1.4967288
http://hdl.handle.net/11536/134508
ISSN: 2158-3226
DOI: 10.1063/1.4967288
期刊: AIP ADVANCES
Volume: 6
Issue: 11
起始頁: 0
結束頁: 0
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