Title :
Fabrication of Cu2ZnSnSe4 thin-films by a two-stage (2SSS) process
Author :
Wang, Yannan ; Sun, Sen ; Xiao Li ; Ferekides, Chris S. ; Morel, Don L.
Author_Institution :
Univ. of South Florida, Tampa, FL, USA
Abstract :
Cu2ZnSnSe4 thin-films have been produced by a two-stage (2SSS) growth process, at annealing temperatures of 400°C-500°C, with different compositions of metallic precursors/Se, in order to reduce the major secondary phases ZnSe and CuxSey. Raman scattering is used to determine the phases in the thin-films. Under proper preparation conditions CZTSe modes are found to dominate, while the common secondary phase ZnSe is not detected.
Keywords :
Raman spectra; annealing; copper compounds; semiconductor growth; semiconductor thin films; ternary semiconductors; tin compounds; zinc compounds; Cu2ZnSnSe4; Raman scattering; annealing temperatures; metallic precursors; secondary phase; temperature 400 degC to 500 degC; thin-film fabrication; two-stage growth process; Annealing; Optical device fabrication; Optical films; Photovoltaic cells; Tin; Zinc; Cu2ZnSnSe4; Raman spectroscopy; kesterite; optical model; photovoltaic cells;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th
Conference_Location :
Tampa, FL
DOI :
10.1109/PVSC.2013.6744185
