Article ID Journal Published Year Pages File Type
8034344 Thin Solid Films 2015 4 Pages PDF
Abstract
Co-evaporated Cu2ZnSnSe4 (CZTSe) is used to examine sensitivities to the device performance that originate from variations in Zn content very near the surface. While integral Zn content of the film is held approximately constant, the surface composition is manipulated via changes to the Zn flux at the end of the deposition. Surface composition, device performance, and open-circuit voltage extrapolated to zero temperature are measured as a function of deposition termination. Origins of the apparent reduction in surface recombination with increasing Zn are discussed.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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