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

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Chalcogenide Letters 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。

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

Chalcogenide Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

CiteScore

1.80

自引率

20.00%

发文量

审稿时长

1 months

期刊介绍： Chalcogenide Letters (CHL) has the aim to publish rapidly papers in chalcogenide field of research and appears with twelve issues per year. The journal is open to letters, short communications and breakings news inserted as Short Notes, in the field of chalcogenide materials either amorphous or crystalline. Short papers in structure, properties and applications, as well as those covering special properties in nano-structured chalcogenides are admitted.