Optical enhancement effects of plasmonic nanostructures on organic photovoltaic cells |
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Authors: | Hui Joon Park L Jay Guo |
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Institution: | a Division of Energy Systems Research, Ajou University, Suwon 443-749, South Korea;
b Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, USA |
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Abstract: | In this article, the optical enhancement effects of plasmonic nanostructures on OPV cells were reviewed as an effective way to resolve the mismatch problems between the short exciton diffusion length in organic semiconductors (around 10 nm) and the large thickness required to fully absorb sunlight (e.g. hundreds of nanometers). Especially, the performances of OPVs with plasmonic nanoparticles in photoactive and buffer layers and with periodic nanostructures were investigated. Furthermore, nanoimprint lithography-based nanofabrication processes that can easily control the dimension and uniformity of structures for large-area and uniform plasmonic nanostructures were demonstrated. |
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Keywords: | Organic photovoltaic Plasmonic nanostructure Nanoparticle Nanograting Nanoimprint lithography |
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