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Title: Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells

Abstract

Graphical abstract: Display Omitted Highlights: ► NG sheets are prepared through a hydrothermal reduction of graphite oxide. ► The transparent NG counter electrodes of DSCs are fabricated at room temperature. ► Transparent NG electrode exhibits excellent catalytic activity for the reduction of I{sub 3}{sup −}. ► The DSC with NG electrode achieves a comparable efficiency to that of the Pt-based cell. ► The efficiency of rear illumination is about 85% that of front illumination. -- Abstract: Nitrogen-doped graphene sheets are prepared through a hydrothermal reduction of graphite oxide in the presence of ammonia and applied to fabricate the transparent counter electrode of dye-sensitized solar cells. The atomic percentage of nitrogen in doped graphene sample is about 2.5%, and the nitrogen bonds display pyridine and pyrrole-like configurations. Cyclic voltammetry studies demonstrate a much higher electrocatalytic activity toward I{sup −}/I{sub 3}{sup −} redox reaction for nitrogen-doped graphene, as compared with pristine graphene. The dye-sensitized solar cell with this transparent nitrogen-doped graphene counter electrode shows conversion efficiencies of 6.12% and 5.23% corresponding to front-side and rear-side illumination, respectively. Meanwhile, the cell with a Pt counter electrode shows a conversion efficiency of 6.97% under the same experimental condition. These promising results highlight the potentialmore » application of nitrogen-doped graphene in cost-effective, transparent dye-sensitized solar cells.« less

Authors:
 [1]; ;  [2]; ;  [1]
  1. School of Chemical Engineering, Shandong University of Technology, Zibo 255049 (China)
  2. Institute of Chemistry, Chinese Academy of Science, Beijing 100080 (China)
Publication Date:
OSTI Identifier:
22215671
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 12; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMMONIA; DOPED MATERIALS; EFFICIENCY; ELECTRODES; GRAPHENE; GRAPHITE; NITROGEN; OXIDES; PHOTOELECTRON SPECTROSCOPY; PYRIDINE; REDOX REACTIONS; SOLAR CELLS; VOLTAMETRY

Citation Formats

Wang, Guiqiang, Fang, Yanyan, Lin, Yuan, Xing, Wei, and Zhuo, Shuping. Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.09.023.
Wang, Guiqiang, Fang, Yanyan, Lin, Yuan, Xing, Wei, & Zhuo, Shuping. Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells. United States. doi:10.1016/J.MATERRESBULL.2012.09.023.
Wang, Guiqiang, Fang, Yanyan, Lin, Yuan, Xing, Wei, and Zhuo, Shuping. Sat . "Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells". United States. doi:10.1016/J.MATERRESBULL.2012.09.023.
@article{osti_22215671,
title = {Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells},
author = {Wang, Guiqiang and Fang, Yanyan and Lin, Yuan and Xing, Wei and Zhuo, Shuping},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► NG sheets are prepared through a hydrothermal reduction of graphite oxide. ► The transparent NG counter electrodes of DSCs are fabricated at room temperature. ► Transparent NG electrode exhibits excellent catalytic activity for the reduction of I{sub 3}{sup −}. ► The DSC with NG electrode achieves a comparable efficiency to that of the Pt-based cell. ► The efficiency of rear illumination is about 85% that of front illumination. -- Abstract: Nitrogen-doped graphene sheets are prepared through a hydrothermal reduction of graphite oxide in the presence of ammonia and applied to fabricate the transparent counter electrode of dye-sensitized solar cells. The atomic percentage of nitrogen in doped graphene sample is about 2.5%, and the nitrogen bonds display pyridine and pyrrole-like configurations. Cyclic voltammetry studies demonstrate a much higher electrocatalytic activity toward I{sup −}/I{sub 3}{sup −} redox reaction for nitrogen-doped graphene, as compared with pristine graphene. The dye-sensitized solar cell with this transparent nitrogen-doped graphene counter electrode shows conversion efficiencies of 6.12% and 5.23% corresponding to front-side and rear-side illumination, respectively. Meanwhile, the cell with a Pt counter electrode shows a conversion efficiency of 6.97% under the same experimental condition. These promising results highlight the potential application of nitrogen-doped graphene in cost-effective, transparent dye-sensitized solar cells.},
doi = {10.1016/J.MATERRESBULL.2012.09.023},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 12,
volume = 47,
place = {United States},
year = {2012},
month = {12}
}