In-situ observation of selenization of Cu-Ga-In metallic precursors

W. K. Kim, E. A. Payzant, S. S. Li, O. D. Crisalle, T. J. Anderson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

The reaction pathway of Cu(In1-x,Gax)Se2 formation by the selenization of Cu-Ga-In/Mo/glass precursors was investigated using in-situ high-temperature X-ray diffraction (HT-XRD). The room-temperature XRD pattern shows that Cu11In9, CuIn, and pure In formed during MBEdeposition of the precursor. Selenium powder was placed in wells on the HT-XRD sample holder to provide a Se ambient during selenization. The in-situ HT-XRD observation of selenization of precursors showed that the selenization process of Cu-Ga-In/Mo/glass produces an intermediate CuSe phase in the temperature range of 260 to 370 °C The formation of CIGS is initiated at approximately 260 °C, which is close to the initial appearance of CuSe. MoSe2 formation was detected at temperature above approximately 400 °C The Ga composition (x= 0.35-0.39) of the resulting CIGS as estimated by the cell refinement method of XRD data suggests partial evaporation of indium during the temperature ramp annealing.

Original languageEnglish
Title of host publicationConference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
PublisherIEEE Computer Society
Pages453-456
Number of pages4
ISBN (Print)1424400163, 9781424400164
DOIs
StatePublished - 2006
Event2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4 - Waikoloa, HI, United States
Duration: May 7 2006May 12 2006

Publication series

NameConference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
Volume1

Conference

Conference2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
Country/TerritoryUnited States
CityWaikoloa, HI
Period05/7/0605/12/06

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