NDLI: A semi-analytical model for semiconductor solar cells: From detailed balance to practical devices

Content Provider	IEEE Xplore Digital Library
Author	Ding Ding Johnson, S.R. Yong-Hang Zhang
Copyright Year	2010
Description	Author affiliation: Center for Nanophotonics and School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, 85287, USA (Ding Ding; Johnson, S.R.; Yong-Hang Zhang)
Abstract	The detailed balance model for semiconductor solar cells is carefully examined and extended to include the impact of nonradiative recombination and other aspects of real solar cell devices, such as photon recycling, spontaneous emission coupling, and less than unity absorptance and emittance. The limiting efficiencies for single and multi-junction solar cells are analyzed taking nonradiative recombination and real material properties into account. Four fundamental loss mechanisms are clarified and discussed, including carrier and solar radiation losses, and as well carrier energy given up to thermalization and spatial relaxation. The fraction of solar power extracted and the fraction lost are investigated as a function of critical device parameters. Quantitative analysis shows that i) SRH recombination and spatial relaxation losses increase as the material quality decreases and ii) the optimal bandgap increases as the material quality decreases.
Starting Page	002908
Ending Page	002911
File Size	1386919
Page Count	4
File Format	PDF
ISBN	9781424458905
ISSN	01608371
e-ISBN	9781424458929
DOI	10.1109/PVSC.2010.5614517
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiative recombination Photovoltaic cells Junctions Current density Photonic band gap Materials
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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