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Plasmonic Light Trapping in Amorphous Si Solar Cells Using Periodic Ag Nanodisk Structures

Published online by Cambridge University Press:  05 February 2014

Hidenori Mizuno ,
Hitoshi Sai ,
Koji Matsubara  and
Michio Kondo
Hidenori Mizuno
Affiliation:
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Hitoshi Sai
Affiliation:
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Koji Matsubara
Affiliation:
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Michio Kondo
Affiliation:
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Abstract

This paper describes light trapping in superstrate-type amorphous Si solar cells incorporated with Ag nanostructures (nanodisks) fabricated by a transfer-printing approach. The changes in external quantum efficiency (EQE) and current-voltage characteristics were investigated by changing the position and size (thickness) of the Ag nanodisks in the cells fabricated on flat superstrates. It was confirmed that the optimized Ag nanodisk-configuration led to the enhanced EQE (20%) in the 600-800 nm wavelength range, and the enhanced EQE led to the improved overall conversion efficiency (7.5%) compared to the cell without Ag nanodisks (7.2%). However, the integration of the optimized Ag nanodisk-configuration with the cells fabricated on textured superstrates did not result in the enhanced EQE and conversion efficiency, suggesting further optical designs are necessary to exploit both texture- and plasmon-mediated light trapping effects.

Keywords

photovoltaicAgSi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1627: Symposium L – Photonic and Plasmonic Materials for Enhanced Optoelectronic Performance , 2014 , mrsf13-1627-l05-03
Copyright
Copyright © Materials Research Society 2014 

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References

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