NDLI: Growth and characterization of CdTe thin films for possible application in high-efficiency solar cells

Content Provider	IEEE Xplore Digital Library
Author	Kobyakov, P.S. Geisthardt, R. Cote, T. Sampath, W.S.
Copyright Year	2012
Description	Author affiliation: NSF I/UCRC for Next Generation Photovoltaics, Colorado State University, Fort Collins, 80523, USA (Kobyakov, P.S.; Geisthardt, R.; Cote, T.; Sampath, W.S.)
Abstract	Expanded band gap ternary alloys, such as CdTe, could be beneficial for formation of high-efficiency CdTe solar cells structures, such as multi-junction and electron reflector devices. CdTe thin films were grown by side-by-side co-evaporation from CdTe and Mg precursors. Optical measurements reveal increased band gap with higher Mg incorporation and lateral band gap grading across the substrate. SEM imaging denotes a grain size decrease with Mg incorporation. XPS analysis indicates Mg directly replaces Cd in the film. TEC10/CdS/CdTe structures with and without CdCl treatment demonstrate photovoltaic diode behavior similar to typical CdS/CdTe devices. LBIC and QE measurements register grading consistent with band gap grading of the film. Although successful, refinement of CdTe thin film co-evaporation is needed to improve spatial uniformity for large area deposition.
Starting Page	000160
Ending Page	000163
File Size	2313525
Page Count	4
File Format	PDF
ISBN	9781467300643
ISSN	01608371
e-ISBN	9781467300667
DOI	10.1109/PVSC.2012.6317591
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonic band gap Optical attenuators Photovoltaic cells Substrates Optical films Optical imaging Measurement by laser beam photovoltaic cells wide band gap semiconductors cadmium tellurium magnesium
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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