Highly efficient polymer tandem cells and semitransparent cells for solar energy

Chih Yu Chang, Lijian Zuo, Hin Lap Yip, Chang Zhi Li, Yongxi Li, Chain Shu Hsu, Yen Ju Cheng, Hongzheng Chen, Alex K Y Jen

研究成果: 雜誌貢獻文章同行評審

83 引文 斯高帕斯(Scopus)


Highly efficient tandem and semitransparent (ST) polymer solar cells utilizing the same donor polymer blended with [6,6]-phenyl-C61- butyric acid methyl ester (PC61BM) and [6,6]-phenyl-C 71-butyric acid methyl ester (PC71BM) as active layers are demonstrated. A high power conversion efficiency (PCE) of 8.5% and a record high open-circuit voltage of 1.71 V are achieved for a tandem cell based on a medium bandgap polymer poly(indacenodithiophene-co-phananthrene-quinoxaline) (PIDT-phanQ). In addition, this approach can also be applied to a low bandgap polymer poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′] dithiophene)-alt-4,7-(5-fluoro-2,1,3-benzothia-diazole)] (PCPDTFBT), and PCEs up to 7.9% are achieved. Due to the very thin total active layer thickness, a highly efficient ST tandem cell based on PIDT-phanQ exhibits a high PCE of 7.4%, which is the highest value reported to date for a ST solar cell. The ST device also possesses a desirable average visible transmittance (≈40%) and an excellent color rendering index (≈100), permitting its use in power-generating window applications.
期刊Advanced Energy Materials
出版狀態已發佈 - 5月 13 2014

ASJC Scopus subject areas

  • 可再生能源、永續發展與環境
  • 材料科學(全部)


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