Influence of annealing temperature on nano crystalline description for CuZnS thin films

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-15 DOI:10.15251/cl.2024.215.385

A. J. Soud, B. K. Al-Maiyaly

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Abstract

Copper Zinc Sulphide (Cu0.5Zn0.5S) alloy and thin films were fabricated in a vacuum. Nano crystallized (CZS) film with thick 450±20 nm was deposit at substrates glasses using thermal evaporation technique below ~ 2 × 10− 5 mbar vacuum to investigated the films structural, morphological and optical properties depended on annealing temperatures ( as-deposited, 423, 523 and 623) K for one hour. The influences annealed temperature on structurally besides morphologically characteristics on these films were investigated using XRD and AFM respectively. XRD confirms the formation a mixed hexagonal phase of CuS-ZnS in (102) direction with polycrystalline in nature having very fine crystallites size varying from (5.5-13.09) nm. AFM analysis shows the uniform distribution of closely packed grains, grain size for that film diverge on ranges as of (52.37 to 89.25) nm after annealed. The optical properties of all films prepared had been examined for the wavelength range 400 - 1000 nm using UV-Vis-NIR spectrometer. The band gaps of (Cu0.5Zn0.5S) films are obtained in the range of 2.4 to 1.9 eV, which makes it a suitable absorber as well as buffer/window layer for solar cell applications.

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退火温度对铜锌锡薄膜纳米晶体描述的影响

在真空中制造了硫化铜锌（Cu0.5Zn0.5S）合金和薄膜。利用热蒸发技术在 ~ 2 × 10- 5 毫巴真空下将厚度为 450±20 纳米的纳米结晶（CZS）薄膜沉积在基底玻璃上，并根据退火温度（沉积温度、423、523 和 623）K（一小时）研究了薄膜的结构、形态和光学特性。分别使用 XRD 和原子力显微镜研究了退火温度对这些薄膜的结构和形态特征的影响。XRD 证实在 (102) 方向上形成了 CuS-ZnS 的混合六方相，其性质为多晶体，具有非常细小的结晶，结晶尺寸在 (5.5-13.09) nm 之间。原子力显微镜分析表明，紧密排列的晶粒分布均匀，退火后薄膜的晶粒大小在（52.37 至 89.25）纳米之间。使用紫外-可见-近红外光谱仪检测了制备的所有薄膜在 400 - 1000 nm 波长范围内的光学特性。结果表明，（Cu0.5Zn0.5S）薄膜的带隙范围在 2.4 至 1.9 eV 之间，这使其成为太阳能电池应用中合适的吸收层和缓冲层/窗口层。

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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.

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