Atomic Layer Grown Zinc-Tin Oxide as an Alternative Buffer Layer for Cu2ZnSnS4-Based Thin Film Solar Cells: Influence of Absorber Surface Treatment on Buffer Layer Growth. - Martin NM; Törndahl T; Babucci M; Larsson F; Simonov K; Gajdek D; Merte LR; Rensmo H; Platzer-Björkman C (ACS applied energy materials, 2022)