Issue 4, 2011
From the journal:

Energy & Environmental Science

Analysis of surface morphological changes in organic photovoltaic devices: bilayer versus bulk-heterojunction†

Dong Hwan Wang,a   Jung Kyu Kim,b   O Ok Park*a  and  Jong Hyeok Park*b  

* Corresponding authors

a Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (BK 21 Graduate Program), 373-1 Guseong-dong, Daejeon, Yuseong-gu, Republic of Korea
E-mail: oopark@kaist.ac.kr

b School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Republic of Korea
E-mail: lutts@skku.edu

Abstract

The active layer of photovoltaic devices with a donor–acceptor polymer-based bilayer or bulk heterojunction (BHJ) can be easily degraded by oxygen, water content, and aging at high temperature. This type of negative effect has hindered the commercialization of organic solar cells. This paper reports on a study of the degradation behavior of a poly(3-hexylthiophene) (P3HT)/[6,6]-phenyl C61-butyric acid methyl ester (PCBM) bilayer or BHJ. A combination of morphological and surface element analysis was investigated to identify the effects of oxygen and aging temperature on device degradation

Graphical abstract: Analysis of surface morphological changes in organic photovoltaic devices: bilayer versus bulk-heterojunction

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Article information

DOI
https://doi.org/10.1039/C0EE00643B
Article type
Paper
Submitted
09 Nov 2010
Accepted
10 Jan 2011
First published
11 Feb 2011

Energy Environ. Sci., 2011,4, 1434-1439

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Analysis of surface morphological changes in organic photovoltaic devices: bilayer versus bulk-heterojunction

D. H. Wang, J. K. Kim, O. O. Park and J. H. Park, Energy Environ. Sci., 2011, 4, 1434 DOI: 10.1039/C0EE00643B

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