NDLI: MBE grown GaInNAs solar cells for multijunction applications

Content Provider	IEEE Xplore Digital Library
Author	Jackrel, D. Homan Yuen Junxian Fu Bank, S. Xiaojun Yu Zhilong Rao Harris, J.S.
Copyright Year	2005
Description	Author affiliation: Stanford Univ., USA (Jackrel, D.; Homan Yuen; Junxian Fu; Bank, S.; Xiaojun Yu; Zhilong Rao; Harris, J.S.)
Abstract	Triple-junction cells composed of III-V materials currently hold the world record for photovoltaic efficiency. In order to further increase cell efficiency in the future 4- and 5-junction cells incorporating a sub-cell with a bandgap of roughly 1.0 eV will be required. In this study 1.0 eV bandgap GaInNAs devices grown by solid source molecular beam epitaxy are investigated in terms of materials quality and device performance that show similar or better properties to the best MOVPE grown devices found in the literature. Deep-level transient spectroscopy measurements illustrate that the trap concentrations in the GaInNAs material are significantly lower than that of MOVPE grown material. The internal quantum efficiency (43%), open-circuit voltage (450 mV), short-circuit current density (25.76 mA/cm/sup 2/) and fill-factor (56.4%) of the GaInNAs devices under 1-sun power density 1064 nm radiation are similar to or surpass the properties of the best MOVPE GaInNAs devices found in the literature.
Sponsorship	IEEE Electron Devices Soc. (USA)
Starting Page	854
Ending Page	857
File Size	789948
Page Count	4
File Format	PDF
ISBN	0780387074
ISSN	01608371
DOI	10.1109/PVSC.2005.1488267
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic cells Epitaxial growth Epitaxial layers Molecular beam epitaxial growth III-V semiconductor materials Photonic band gap Photovoltaic systems Solar power generation Solids Spectroscopy
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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