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Proceedings Paper

Optimizing material properties of bulk-heterojunction polymer films for photovoltaic applications
Author(s): Yanfei Ding; Ping Lu; Qiying Chen
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Paper Abstract

Bulk-heterojunction photovoltaic devices consisting of poly (3-hexylthiophene) (P3HT) as a donor and [6,6]-phenyl- C61-butyric acid methyl ester (PCBM) as an acceptor are investigated in this paper. To achieve an efficient photo-induced charge transfer, the following aspects have been studied: (1) Selection of suitable solvent to obtain good morphology of the films and optimal absorption spectrum; (2) Determination of the donor/acceptor composition ratio that yields good film interface and high photon absorption; (3) Thermal annealing process to enhance the photon absorption, improve the short circuit current and the filling factor, and therefore the efficiency of the devices.

Paper Details

Date Published: 12 August 2008
PDF: 8 pages
Proc. SPIE 7099, Photonics North 2008, 709919 (12 August 2008); doi: 10.1117/12.806958
Show Author Affiliations
Yanfei Ding, Memorial Univ. of Newfoundland (Canada)
Ping Lu, Memorial Univ. of Newfoundland (Canada)
Qiying Chen, Memorial Univ. of Newfoundland (Canada)


Published in SPIE Proceedings Vol. 7099:
Photonics North 2008

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