Flexible inverted polymer solar cells fabricated in air at low temperatures

• Takayuki Kuwabara

• Xiaofan Wang

• Takuji Kusumi

• Takahiro Yamaguchi

• Tetsuya Taima

• Kohshin Takahashi

抄録

A series of modified indium tin oxide (ITO) materials, including sol–gel zinc-oxide-coated ITO (ITO/ZnO), ZnO nanoparticle-coated ITO (ITO/ZnO-NP), 1,4-bis(3-aminopropyl)piperazine (BAP)-modified ITO, and polyethylenimine ethoxylated (PEIE)-modified ITO, were used for electron-collection electrodes in inverted polymer solar cells (PSCs). The modified ITO electrodes were prepared in air at temperatures below 100 °C, using various ITO films on flexible poly(ethylene terephthalate) substrates (PET–ITO) with sheet resistances ranging from 12 to 60 Ω sq −1 . The PET–ITO (12 Ω sq −1 )/ZnO-NP PSC exhibited an improved power conversion efficiency (PCE) (2.93%), and this PCE was ∼90% of that observed for a cell using glass–ITO/ZnO-NP (sheet resistance = 10 Ω sq −1 ; PCE = 3.28%). Additionally, we fabricated a flexible inverted ZnO-NP PSC using an indene-C 60 bisadduct (ICBA) as the acceptor material in place of [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM) and obtained a PCE of 4.18%.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 55 (8), 086501-, 2016-06-29

  IOP Publishing

キーワード

• General Physics and Astronomy
• General Engineering

詳細情報

• CRID: 1360566399844121472
• NII論文ID: 210000146953
• DOI: 10.7567/jjap.55.086501
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• Web Site: http://stacks.iop.org/1347-4065/55/i=8/a=086501/pdf
• Web Site: http://stacks.iop.org/1347-4065/55/i=8/a=086501?key=crossref.5c83b22ce7b5c5558b2a398e094d36aa
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.55.086501
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.55.086501/pdf
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