Solution-processable polymer solar cells from a poly(3-hexylthiophene)/[6,6]-phenyl C{sub 61}-butyric acidmethyl ester concentration graded bilayers

Journal Article · Mon Jul 27 00:00:00 EDT 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3192360· OSTI ID:21308704

Wang, Dong Hwan; Lee, Hang Ken; Park, O Ok ^[1]; Choi, Dae-Geun ^[2]; Park, Jong Hyeok ^[3]

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1. Department of Chemical and Biomolecular Engineering(BK21 Graduate Program), Interdisciplinary Program for Polymers, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)
2. Research Park, KIMM (Korea Institute of Machinery and Materials), 104, Jang-dong, Yuseong-gu, Daejeon 305-343 (Korea, Republic of)
3. Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)

Polymer photovoltaic (PV) device prepared with a vertical phase separation has intensified the research on the effectiveness of the concentration graded active layer. In this paper, a polymer PV device with a poly(3-hexylthiophene)/[6,6]-phenyl C{sub 61}-butyric acidmethyl ester (P3HT/PCBM) bilayers active film with a concentration gradient has been fabricated via solution process. The concentration variation has been confirmed by the Auger spectroscopy. The devices showed an enhanced photocurrent density and power conversion efficiency compared to those of the bulk heterojunction PV prepared under the same fabrication condition.

• OSTI ID: 21308704
• Journal Information: Applied Physics Letters, Vol. 95, Issue 4; Other Information: DOI: 10.1063/1.3192360; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUGER ELECTRON SPECTROSCOPY
ESTERS
HETEROJUNCTIONS
LAYERS
PHOTOCONDUCTIVITY
PHOTOVOLTAIC EFFECT
POLYMERS
SOLAR CELLS