1. See for example, Copper Zinc Tin Sulfide-Based Thin Film Solar Cells, ed. by K. Ito (Wiley, Chichester, UK, 2015)
2. K. Ito, T. Nakazawa, Jpn. J. Appl. Phys. 27, 2094 (1988)
3. T.M. Friedlmeier, N. Wieser, T. Walter, H. Dittrich, H.W. Schock, Proceedings of the 14th European Conference of Photovoltatic Science and Engineering and Exhibition (Bedford, UK, 1997), p. 1242
4. K. Todorov, K.B. Reuter, D.B. Mitzi, Adv. Mater. 22, E156 (2010)
5. W. Wang, M.T. Winkler, O. Gunawan, T. Gokmen, T.K. Todorov, Y. Zhu, D.B. Mitzi, Adv. Mater. 4, 1301465 (2014)