Journal
ELECTROCHIMICA ACTA
Volume 93, Issue -, Pages 293-300Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.01.068
Keywords
Solar cell; Single wall carbon nanotube (SCNT); Electrophoretic deposition; Ag nanoparticles; Plasmon resonance
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Funding
- 863 Project [2011AA050517]
- Fundamental Research Funds for the Central Universities
- Chinese NSF [61106100]
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We report that the power conversion efficiency (PCE) of single wall carbon nanotube (SCNT)-n-type crystalline silicon bulk heterojunction photovoltaic devices is significantly improved by Ag nanoparticles decorating on SCNTs film. PCE, open circuit voltage, short-circuit current density, and fill factor achieved for Ag decorating are 1.32%, 0.41 V, 12.6 mA/cm(2), 26% from 0.6%, 0.42V, 6.76 mA/cm(2), 21%, respectively. It is found that the overall PCE was significantly increased to more than 2-fold. These main reasons of improvements result from a combination of enhanced light absorption caused by the light scattering and localized surface plasmon resonance of Ag nanoparticles in the active layer. The fabrication of the Ag-nanoparticles SCNTs film-n-type crystalline silicon bulk heterojunction photovoltaic devices is easy, cost-effective, and easily scaled up. This paper demonstrates that such Ag-nanoparticles decorating on SCNTs film/Si solar cells possess promising potential in energy harvesting applications. (C) 2013 Elsevier Ltd. All rights reserved.
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