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International Journal of Photoenergy
Volume 2016, Article ID 2135847, 11 pages
http://dx.doi.org/10.1155/2016/2135847
Research Article

Photoelectric Properties of DSSCs Sensitized by Phloxine B and Bromophenol Blue

1College of Science, Northeast Forestry University, Harbin 150040, China
2College of Science, Jiamusi University, Jiamusi 154007, China

Received 30 June 2016; Revised 12 September 2016; Accepted 5 October 2016

Academic Editor: Francisco R. Zepeda

Copyright © 2016 Penghui Ren et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Phloxine B and bromophenol blue as the sensitizers of dye-sensitized solar cells were investigated via UV-Vis spectra, FT-IR spectra, fluorescence spectra, and current-voltage characteristics. The frontier molecular orbital, vibration analysis, and the first hyperpolarizability were calculated with DFT/6-31G(d). The dipole moment, light harvesting efficiency (LHE), and larger absolute value of driving force of electron injection () were also discussed. The calculated results were compared with the experimental results of phloxine B and bromophenol blue. It was found that, compared with bromophenol blue, bigger dipole moment of phloxine B results in larger open circuit voltage () according to the correlation between dipole moment and . At the same time, for configuration of phloxine B, it has higher LHE and , which are helpful to enhance the abilities of absorbing sunlight and electron injection. Therefore, higher LHE and for phloxine B produced a larger value of .