Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells
- Authors
- Lee, Jung-Wook; Lee, Soo-Hyoung; Kim, Yong-Hoon; Park, Sung Kyu
- Issue Date
- Sep-2014
- Publisher
- SPRINGER
- Citation
- APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, v.116, no.4, pp 2087 - 2093
- Pages
- 7
- Journal Title
- APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
- Volume
- 116
- Number
- 4
- Start Page
- 2087
- End Page
- 2093
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/11855
- DOI
- 10.1007/s00339-014-8407-2
- ISSN
- 0947-8396
1432-0630
- Abstract
- A simple and versatile route of forming sol-gel-derived metal oxide n-type electron transport layers (ETLs) for flexible inverted polymer solar cells (PSCs) is proposed using low-temperature photochemical activation process. The photochemical activation, which is induced by deep ultraviolet irradiation on sol-gel films, allows formation of metal oxide n-type ETLs such as zinc oxide (ZnO) and indium gallium zinc oxide films at a low temperature. Compared to poly(3-hexylthiophene)/phenyl-C-61-butyric acid methyl ester inverted PSCs with thermally annealed ZnO ETLs (optimized efficiency of 3.26 +/- A 0.03 %), the inverted PSCs with photo-activated ZnO ETLs showed an improved efficiency of 3.60 +/- A 0.02 %. The enhanced photovoltaic property is attributed to efficient charge collection from low overall series resistance and high surface area-to-geometric area ratio by the photo-activated ZnO ETLs.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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