Optimizing material properties of bulk-heterojunction polymer films for photovoltaic applications

Yanfei Ding; Ping Lu; Qiying Chen

doi:10.1117/12.806958

12 August 2008 Optimizing material properties of bulk-heterojunction polymer films for photovoltaic applications

Yanfei Ding, Ping Lu, Qiying Chen

Proceedings Volume 7099, Photonics North 2008; 709919 (2008) https://doi.org/10.1117/12.806958
Event: Photonics North 2008, 2008, Montréal, Canada

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.

Citation Download Citation

Yanfei Ding, Ping Lu, and Qiying Chen "Optimizing material properties of bulk-heterojunction polymer films for photovoltaic applications", Proc. SPIE 7099, Photonics North 2008, 709919 (12 August 2008); https://doi.org/10.1117/12.806958

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