The effect of low-temperature annealing on structure and chemical composition of Cu2ZnSnS4 films deposited on flexible polyimide substrates - S. I. Kakherskyi; O. A. Dobrozhan; R. M. Pshenychnyi; S. I. Vorobiov; Ye. O. Havryliuk; V. Komanitskyi; S. V. Plotnikov; A. S. Opanasiuk (Materials Science (Physicochemical mechanics of materials), 2021)