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Title: Air-stable efficient inverted polymer solar cells using solution-processed nanocrystalline ZnO interfacial layer
Authors: Tan, M.J.
Zhong, S.
Li, J.
Chen, Z.
Chen, W. 
Keywords: electron transport layer
inverted polymer solar cells
lifetime stability
solution processable
zinc oxide
Issue Date: 12-Jun-2013
Citation: Tan, M.J., Zhong, S., Li, J., Chen, Z., Chen, W. (2013-06-12). Air-stable efficient inverted polymer solar cells using solution-processed nanocrystalline ZnO interfacial layer. ACS Applied Materials and Interfaces 5 (11) : 4696-4701. ScholarBank@NUS Repository.
Abstract: In this work, efficient bulk heterojunction (BHJ) organic solar cells (OSC) in inverted configuration have been demonstrated. Power conversion efficiency (PCE) of 3.7% is reported for OSC employing silver top electrodes, molybdenum trioxide (MoO3) as the hole-transport interlayer (HTL), active layer comprising of poly-3-hexylthiophene (P3HT) and [6,6]-phenyl C61 butyric acid methyl ester (PCBM) as well as a nanocrystalline solution-synthesized zinc oxide (ZnO) nanoparticle (NP) film as the electron-transport layer (ETL). By using solution-processable ZnO crystalline NPs as ETL, we can eliminate the typical high temperature processing/annealing step, which is widely adopted in the conventional ZnO ETL fabrication process via the sol-gel method. Such highly crystalline ZnO NP films can enhance charge collection at the electrodes. It is also found that inverted OSCs exhibit greater air stability and lifetime performance compared to the OSC employing the normal structure. © 2013 American Chemical Society.
Source Title: ACS Applied Materials and Interfaces
ISSN: 19448244
DOI: 10.1021/am303004r
Appears in Collections:Staff Publications

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