Effect of solvents on the performance of P3HT:PCBM solar cells

Weimin Li; Jinchuan Guo; Xiuquan Sun; Bin Zhou

doi:10.1117/12.868374

15 October 2010 Effect of solvents on the performance of P3HT:PCBM solar cells

Weimin Li, Jinchuan Guo, Xiuquan Sun, Bin Zhou

Proceedings Volume 7847, Optoelectronic Devices and Integration III; 784709 (2010) https://doi.org/10.1117/12.868374
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Investigating the effects of solvents on the performance of poly(3-hexylthiophene-2,5-diy1) (P3HT):C61-butyric acid methyl ester (PCBM) bulk heterojunction solar cells, we found the short current density (Jsc), fill factor(FF),and power conversion efficiency (η) of a cell with a photo-active layer made using materials dissolved in a higher boiling point solvent to be higher than those of a cell made using the same materials dissolved in a low boiling point solvent. Evaluating the surface morphology, charge mobility, and current-voltage curve of cells made using different solvents, we concluded that the polymer films using a higher boiling point solvent had longtime to self-organize, got a higher degree of crystalline, led to lower device series resistance, thereby increased the short current density (Jsc), fill factor(FF),and power conversion efficiency (η) of the photovoltaic devices.

Citation Download Citation

Weimin Li, Jinchuan Guo, Xiuquan Sun, and Bin Zhou "Effect of solvents on the performance of P3HT:PCBM solar cells", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784709 (15 October 2010); https://doi.org/10.1117/12.868374

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