Impact of molybdenum out diffusion and interface quality on the performance of sputter grown CZTS based solar cells.

ABSTRACT: We have investigated the impact of Cu₂ZnSnS₄-Molybdenum (Mo) interface quality on the performance of sputter-grown Cu₂ZnSnS₄ (CZTS) solar cell. Thin film CZTS was deposited by sputter deposition technique using stoichiometry quaternary CZTS target. Formation of molybdenum sulphide (MoS_x) interfacial layer is observed in sputter grown CZTS films after sulphurization. Thickness of MoS_x layer is found ~142 nm when CZTS layer (550 nm thick) is sulphurized at 600 °C. Thickness of MoS_x layer significantly increased to ~240 nm in case of thicker CZTS layer (650 nm) under similar sulphurization condition. We also observe that high temperature (600 °C) annealing suppress the elemental impurities (Cu, Zn, Sn) at interfacial

SUBMITTER: Dalapati GK 

PROVIDER: S-EPMC5430996 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature