High performance dye-sensitized solar cells using graphene modified fluorine-doped tin oxide glass by Langmuir-Blodgett technique
- Title
- High performance dye-sensitized solar cells using graphene modified fluorine-doped tin oxide glass by Langmuir-Blodgett technique
- Author
- 한태희
- Keywords
- Dye-sensitized solar cell; Langmuir-Blodgett; Graphene; Surface modification
- Issue Date
- 2015-04
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Citation
- JOURNAL OF SOLID STATE CHEMISTRY, v. 224, NO Special SI, Page. 71-75
- Abstract
- Since the introduction of dye-sensitized solar cells (DSSCs) with low fabrication cost and high power conversion efficiency, extensive studies have been carried out to improve the charge transfer rate and performance of DSSCs. In this paper, we present DSSCs that use surface modified fluorine-doped tin oxide (PTO) substrates with reduced graphene oxide (r-GO) sheets prepared using the Langmuir-Blodgett (LB) technique to decrease the charge recombination at the TiO2/FTO interface. R-GO sheets were excellently attached on FTO surface without physical deformations such as wrinkles; effects of the surface coverage of r-GO on the DSSC performance were also investigated. By using graphene modified FTO substrates, the resistance at the interface of TiO2/FTO was reduced and the power conversion efficiency was increased to 8.44%. (C) 2014 Elsevier Inc. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S0022459614001807http://hdl.handle.net/20.500.11754/24144
- ISSN
- 0022-4596; 1095-726X
- DOI
- 10.1016/j.jssc.2014.04.022
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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