Journal
RSC ADVANCES
Volume 10, Issue 28, Pages 16749-16755Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra01749c
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SnSe thin films were deposited by a co-evaporation method with different film thicknesses and evaporation rates. A device with a structure of soda-lime glass/Mo/SnSe/CdS/i-ZnO/ITO/Ni/Al was fabricated. Device efficiency was improved from 0.18% to 1.02% by a film thickness of 1.3 mu m and evaporation rate of 2.5 angstrom S(-1)viaaugmentation of short-circuit current density and open-circuit voltage. Properties (electrical, optical, structural) and scanning electron microscopy measurements were compared for samples. A SnSe thin-film solar cell prepared with a film thickness of 1.3 mu m and evaporation rate of 2.5 angstrom S(-1)had the highest electron mobility, better crystalline properties, and larger grain size compared with the other solar cells prepared. These data can be used to guide growth of high-quality SnSe thin films, and contribute to development of efficient SnSe thin-film solar cells using an evaporation-based method.
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