Article Materials Science

Chinese Science Bulletin

, Volume 56, Issue 3, pp 325-330

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Flexible dye-sensitized solar cell based on PCBM/P3HT heterojunction

  • GenTian YueAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University
  • , JiHuai WuAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University Email author 
  • , YaoMing XiaoAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University
  • , HaiFeng YeAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University
  • , JianMing LinAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University
  • , MiaoLiang HuangAffiliated withEngineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Materials Physical Chemistry, Huaqiao University

Abstract

Using blend heterojunction consisting of C60 derivatives [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and poly(3-hexylthiophene) (P3HT) as charge carrier transferring medium to replace I3 /I redox electrolyte, a novel flexible dye-sensitized solar cell (DSSC) is fabricated. The characterization of infrared spectra and ultraviolet-visible spectra shows that the PCBM/P3HT heterojunction has not only the absorption in ultraviolet light for PCBM, but also the absorption in visible and near infrared light for P3HT, which widens the photoelectric response range for DSSC. The influence of PCBM/P3HT mass ratio on the performance of the solar cell is discussed. Under 100 mW cm−2 (AM 1.5) simulated solar irradiation, the flexible solar cell achieves a light-to-electric energy conversion efficiency of 1.43%, open circuit voltage of 0.87 V, short circuit current density of 3.0 mA cm−2 and fill factor of 0.54.

Keywords

flexible solar cell dye-sensitized poly(3-hexylthiophene) [6,6]-phenyl-C61-butyric acid methyl ester