Preparation of SnS Thin Films by Close-Spaced Sublimation at Different Source Temperatures

Abstract:

In this paper, thin films of tin monosulfide (SnS) were successfully prepared by close-spaced sublimation (CSS) on the source temperature of 650 °C and 720 °C using SnS powder as a source. The influence of the source temperature on the chemical composition, crystal structure, surface morphology, and direct band gap of SnS thin films was systemically investigated by energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis-NIR absorption spectra, respectively. The results showed that the SnS grain size increased from 3 μm to 20 μm by increase of the source temperature from 650 °C to 720 °C. The direct band gaps of SnS thin films prepared at different source temperatures 650 °C and 720 °C were 1.21 and 1.15 eV, respectively.

• Periodical: Advanced Materials Research (Volume 590)
• Pages: 148-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.590.148
• Online since: November 2012
• Authors: Xiao Ping Zhan, Cheng Wu Shi, Xin Jie Shen, Min Yao, Yan Ru Zhang
• Keywords: Close-Spaced Sublimation, SNS, Source Temperature, Thin Film

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