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Open Access Nano Idea

Performance characteristics of polymer photovoltaic solar cells with an additive-incorporated active layer

Hyomin Kim, Sunseong Ok, Hyunhee Chae and Youngson Choe*

Author Affiliations

Department of Chemical Engineering, Pusan National University, Busan, 609-735, South Korea

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Nanoscale Research Letters 2012, 7:56  doi:10.1186/1556-276X-7-56

Published: 5 January 2012

Abstract

We have investigated the performance characteristics of bulk-heterojunction polymer solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester by adding 1,8-octanedithiol as a processing agent in an active layer. The effects of the additive, 1,8-octanedithiol, on the device performance parameter characteristics have been discussed. The current density-voltage measurements, UV-Vis absorption spectra, X-ray diffraction spectra, and scanning probe microscope images have been used to discuss the performance characteristics of polymer solar cells.

Keywords:
bulk heterojunction; power conversion efficiency; polymer solar cell; excitons