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Light Trapping: Toward Perfect Light Trapping in Thin‐Film Photovoltaic Cells: Full Utilization of the Dual Characteristics of Light (Advanced Optical Materials 12/2015)
Author(s) -
Cho Changsoon,
Jeong Seonju,
Choi HwanJin,
Shin Nara,
Kim BongSoo,
Jeon Eunchae,
Lee JungYong
Publication year - 2015
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201570074
Subject(s) - materials science , optoelectronics , trapping , thin film , photovoltaic system , surface plasmon resonance , substrate (aquarium) , surface plasmon , optics , absorption (acoustics) , plasmonic solar cell , plasmon , layer (electronics) , ray , energy conversion efficiency , nanotechnology , nanoparticle , polymer solar cell , composite material , oceanography , geology , ecology , physics , biology
The cover illustrates a multiscale light‐trapping system for thin‐film photovoltaic cells. A compound parabolic trapper with a V‐groove textured surface is attached on top of a substrate as a ray‐optical scheme to maximize the bounces of incident photons. A thin active layer on the bottom is patterned with metal nanogratings, which induces surface plasmon resonance to compensate for insufficient band‐edge absorption. On page 1697, J.‐Y. Lee and co‐workers describe their optical strategy to achieve a high power conversion efficiency by compensating optical losses of thin‐film photovoltaic cells.