Vapor Treatment and In-situ Recrystallization by Copper Chloride on Cu(In,Ga)Se2 Thin Film

Belfore, Benjamin; Poudel, Deewakar; Ashrafee, Tasnuva; Palmiotti, Elizabeth; Lepetit, Thomas; Karki, Shankar; Rajan, Grace; Rockett, Angus; Marsillac, Sylvain

doi:10.1109/pvsc43889.2021.9518617

Vapor Treatment and In-situ Recrystallization by Copper Chloride on Cu(In,Ga)Se₂ Thin Film

Journal Article · Sun Jun 20 04:00:00 EDT 2021 · Conference Record of the IEEE Photovoltaic Specialists Conference

DOI:https://doi.org/10.1109/pvsc43889.2021.9518617· OSTI ID:1991383

Belfore, Benjamin ^[1]; Poudel, Deewakar ^[2]; Ashrafee, Tasnuva ^[2]; Palmiotti, Elizabeth ^[3]; Lepetit, Thomas ^[4]; Karki, Shankar ^[2]; Rajan, Grace ^[2]; Rockett, Angus ^[3]; Marsillac, Sylvain ^[2]

Old Dominion University, Norfolk, VA (United States); Colorado School of Mines
Old Dominion University, Norfolk, VA (United States)
Colorado School of Mines, Golden, CO (United States)
Universite de Nantes (France)

Deposition of CIGS semiconductor thin films was performed at low temperature and high rate by three-stage coevaporation process on molybdenum coated glass substrate. Here, a vapor treatment was done in between the second and third stage by flashing CuCl₂ for 5 mins at 400 °C. A large change in morphology and crystal structure was observed after the treatment. XRD and SEM showed that small grains transformed into large grains. A smoother Ga profile was observed by SIMS measurements for the treated films as compared to as-deposited films. Furthermore, the Na profile was also modified in the recrystallized samples, with a lower content after recrystallization.

View Accepted Manuscript (DOE)

Research Organization:: Colorado School of Mines, Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: EE0007551

OSTI ID:: 1991383

Journal Information:: Conference Record of the IEEE Photovoltaic Specialists Conference, Journal Name: Conference Record of the IEEE Photovoltaic Specialists Conference Vol. 2021; ISSN 0160-8371

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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