退火温度对真空蒸发 Cu13Se52Bi35 薄膜结构和光学特性的影响

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-01-31 DOI:10.15251/cl.2024.211.99

A. Alwany, A. Alnakhlani, B. Hassan, M. Algradee, R. A. Fouad, A. A. Alfaqeer

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引用次数: 0

摘要

采用热蒸发技术制备了 Cu13Se52Bi35 薄膜。利用 X 射线衍射（XRD）、扫描电子显微镜（SEM）和光学透射与反射对沉积和退火样品进行了研究。X 射线衍射表明，沉积薄膜为晶体状，且样品的晶体尺寸随退火温度的升高而增大。扫描电镜图像显示，样品的形貌随退火温度的升高而变化。观察到 Cu13Se52Bi35 薄膜的光带隙（Eg）发生了直接转变，Eg 值随着退火温度的升高而降低。此外还研究了其他光学参数。

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Effect of annealing temperature on the structural and optical properties of vacuum evaporated Cu13Se52Bi35 thin films

Thermal evaporation technique was used to prepare Cu13Se52Bi35 thin films. The asdeposited and annealed samples were investigated by using the X-ray diffraction (XRD), scanning electron microscopy (SEM) and optical transmission and reflection. The XRD showed that the as-deposited film is crystalline in nature, and the crystalline size of samples increased with increasing the annealing temperature. SEM images showed that the morphology of the sample changes with the annealing temperature. The direct transition of the optical band gap (Eg) of Cu13Se52Bi35 films was observed and the values of Eg decreased with increasing the annealing temperature. Other optical parameters were also investigated.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.