Slow-light-enhanced upconversion for photovoltaic applications in one-dimensional photonic crystals

被引：42

作者：

Johnson, Craig M. ^{[1
,2
]}

Reece, Peter J. ^{[2
]}

Conibeer, Gavin J. ^{[1
]}

机构：

[1] Univ New S Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia

[2] Univ New S Wales, Sch Phys, Optoelect Grp, Sydney, NSW 2052, Australia

来源：

OPTICS LETTERS | 2011年 / 36卷 / 20期

关键词：

D O I：

10.1364/OL.36.003990

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an approach to realizing enhanced upconversion efficiency in erbium (Er)-doped photonic crystals. Slow-light-mode pumping of the first Er excited state transition can result in enhanced emission from higher-energy levels that may lead to finite subbandgap external quantum efficiency in crystalline silicon solar cells. Using a straightforward electromagnetic model, we calculate potential field enhancements of more than 18x within he slow-light mode of a one-dimensional photonic crystal and discuss design trade-offs and considerations for photovoltaics. (C) 2011 Optical Society of America

引用

页码：3990 / 3992

页数：3

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