Effects of Ar+ etching of Cu2ZnSnSe4 thin films : An x-ray photoelectron spectroscopy and photoluminescence studyYakushev, Michael V.; Sulimov, Mikhail A.; Skidchenko, Ekaterina; Krustok, JüriJournal of Vacuum Science & Technology B2018 / art. 061208, 8 p. : ill https://doi.org/10.1116/1.5050243 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS