Optimization of growth conditions for direct synthesis of SnSe2 thin films via improved atmospheric pressure chemical vapor deposition

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2024-11-23 DOI:10.1016/j.optmat.2024.116467

Baoqi Wu , Zhihao Wang , Zhanshou Wang , Jianyuan Yu , Hongli Zhao

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Abstract

In this study, high-quality tin diselenide (SnSe₂) thin films were successfully synthesized using an optimized atmospheric pressure chemical vapor deposition (APCVD) technique. Precise control over key growth parameters, such as substrate temperature and deposition time, enabled the realization of films exhibiting exceptional crystallographic and optical properties. Notably, the growth temperature was found to significantly influence the SnSe₂ film morphology. Under the optimal conditions (250 °C growth temperature and 90 min of deposition), the films exhibited a strong (001) crystal orientation, 24.6 % transmittance, an optical bandgap of 1.55 eV, and an optical thickness of approximately 386.19 nm. Additionally, the films demonstrated N-type semiconductor behavior, making them highly suitable for use in electronic and optoelectronic applications. This study provides valuable insights for the large-scale production of high-performance SnSe₂ thin films suitable for electronic and optoelectronic applications.

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优化通过改进型常压化学气相沉积直接合成 SnSe2 薄膜的生长条件

本研究采用优化的常压化学气相沉积（APCVD）技术，成功合成了高质量的二硒化锡（SnSe2）薄膜。通过对基底温度和沉积时间等关键生长参数的精确控制，成功合成了具有优异晶体学和光学特性的薄膜。值得注意的是，生长温度对 SnSe2 薄膜的形态有显著影响。在最佳条件下（生长温度为 250 ℃，沉积时间为 90 分钟），薄膜呈现出较强的 (001) 晶体取向，透射率为 24.6%，光带隙为 1.55 eV，光学厚度约为 386.19 nm。此外，薄膜还具有 N 型半导体特性，因此非常适合用于电子和光电应用。这项研究为大规模生产适用于电子和光电应用的高性能 SnSe2 薄膜提供了宝贵的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.