Title

Preparation Of Cigss Thin-Film Solar Cells By Rapid Thermal Processing

Abstract

Rapid thermal processing (RTP) provides a way to rapidly heat substrates to an elevated temperature to perform relatively short duration processes, typically less than 2-3 min long. RTP can be utilized to minimize the process cycle time without compromising process uniformity, thus eliminating a bottleneck in CuIn1-xGaxSe2-ySy (CIGSS) module fabrication. Some approaches have been able to realize solar cells with conversion efficiencies close or equal to those for conventionally processed solar cells with similar device structures. A RTP reactor for preparation of CIGSS thin films on 10 cm × 10 cm substrates has been designed, assembled, and tested at the Florida Solar Energy Center's PV Materials Lab. This paper describes the synthesis and characterization of CIGSS thin-film solar cells by the RTP technique. Materials characterization of these films was done by scanning electron microscopy, x-ray energy dispersive spectroscopy, x-ray diffraction, Auger electron spectroscopy, electron probe microanalysis, and electrical characterization was done by current-voltage measurements on soda lime glass substrates by the RTP technique. Encouraging results were obtained during the first few experimental sets, demonstrating that reasonable solar cell efficiencies (up to 9%) can be achieved with relatively shorter cycle times, lower thermal budgets, and without using toxic gases. Copyright © 2007 by ASME.

Publication Date

8-1-2007

Publication Title

Journal of Solar Energy Engineering, Transactions of the ASME

Volume

129

Issue

3

Number of Pages

323-326

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/1.2735349

Socpus ID

34548282496 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34548282496

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