期刊
APPLIED PHYSICS LETTERS
卷 99, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3640217
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资金
- Center for Solar and Thermal Energy Conversion
- U.S. Department of Energy Office of Science, Office of Basic Energy Sciences [DE-SC0000957]
A plasmonic nanoparticle incorporated inverted organic photovoltaic structure was demonstrated where a monolayer of Ag nanoparticles acted as a wavelength selective reflector. Enhanced light harvesting via plasmonic backscattering into the photovoltaic absorber was observed, resulting in a two-fold improvement in the photocurrent and increased open-circuit voltage. Further, utilizing an optical spacer, the plasmonic backscattering was spectrally controlled, thereby modulating the external quantum efficiency and the photocurrent. Unlike a regular thin-film metallic back reflector, excellent off-resonance optical transmission in excess of 80% was observed from the Ag nanoparticles, making this structure highly suitable for semi-transparent and multi-junction photovoltaic applications. (C) 2011 American Institute of Physics. [doi:10.1063/1.3640217]
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