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Issue 28, 2020
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Effect of film thickness and evaporation rate on co-evaporated SnSe thin films for photovoltaic applications

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Abstract

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 μm and evaporation rate of 2.5 Å S−1 via augmentation 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 μm and evaporation rate of 2.5 Å 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.

Graphical abstract: Effect of film thickness and evaporation rate on co-evaporated SnSe thin films for photovoltaic applications

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Article information


Submitted
24 Feb 2020
Accepted
27 Mar 2020
First published
29 Apr 2020

This article is Open Access

RSC Adv., 2020,10, 16749-16755
Article type
Paper

Effect of film thickness and evaporation rate on co-evaporated SnSe thin films for photovoltaic applications

Z. Li, Y. Guo, F. Zhao, C. Nie, H. Li, J. Shi, X. Liu, J. Jiang and S. Zuo, RSC Adv., 2020, 10, 16749
DOI: 10.1039/D0RA01749C

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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