1. 1) S. Wagner et al., CuInSe2/CdS heterojunction photovoltaic detectors, Appl. Phys. Lett. 25, 434-435 (1974).
2. 2) L. L. Kazmerski et al., Heterojunction and homojunction thin-film solar cells utilizing CuInS2 and CuInSe2, Bul. Am. Phys. Soc. 22, 346-347 (1977).
3. 3) M. Nakamura et al., Cd-free Cu(In, Ga)(Se, S)2 thin-film sola cell with record efficiency of 23.35%, IEEE J. Photovolt. 9, 1863-1867 (2019).
4. 4) T. Dalibor, CIGSSe module efficiencies on the verge of 20%, European Materials Research Society 2022 Spring Meeting, K.6.1. May 31, 2022.
5. 5) J. Hedström et al., ZnO/CdS/Cu(In, Ga)Se2 thin film solar cells with improved performance, Conference record of the 23rd IEEE Photovoltaic Specialists Conference, Louisville, USA, 1993, pp. 364-371.