Growth and Characterization of Cd1−XZnXTe-Sintered Films

4区材料科学 Q2 Engineering

Advances in Materials Science and Engineering Pub Date : 2007-12-06 DOI:10.1155/2007/63702

V. Kumar, G. S. Sandhu, T. Sharma, M. Hussain

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引用次数: 6

Abstract

The II-VI polycrystalline semiconducting materials have come under increased scrutiny because of their wide use in the cost reduction of devices for photovoltaic applications. Cd 1 − X Zn X Te is one of the II-VI ternary semiconductor materials whose bandgap can be tailored to any value between 1.48–2.26 eV as X varies from 0 to 1. It is promising material for high-efficiency solar cells, switching, and other optoelectronic devices. Polycrystalline thin film of Cd 1 − X Zn X Te with variable composition ( 0 ≤ X ≤ 1 ) has been deposited on ultraclean glass substrates by screen printing method followed by sintering process. The optical and structural properties of Cd 1 − X Zn X Te thin films have been examined. The optical bandgap of these films is studied using reflection spectra in wavelength range of 350–900 nm by using double beam spectrophotometer. The structure of sample was determined from X-ray diffraction patterns. The films were polycrystalline in nature having wurtzite (Hexagonal) structure over the whole range studied. The lattice parameters vary almost linearly with the composition parameter X , following Vegard's law. Sintering is a very simple and viable method compared to other cost-intensive methods. The results of the present investigation will be useful in characterizing the material CdZnTe for its applications in photovoltaics.

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Cd1−xznxte烧结薄膜的生长与表征

II-VI型多晶半导体材料因其在降低光电器件成本方面的广泛应用而受到越来越多的关注。Cd 1−X Zn X Te是一种II-VI型三元半导体材料，当X从0到1变化时，其带隙可以在1.48 ~ 2.26 eV之间任意调整。它是高效太阳能电池、开关和其他光电器件的有前途的材料。采用丝网印刷法和烧结工艺在超净玻璃基板上沉积了可变成分(0≤X≤1)的Cd 1−X Zn X Te多晶薄膜。研究了Cd 1−X Zn X Te薄膜的光学性质和结构性质。利用双光束分光光度计在350 ~ 900 nm波长范围内的反射光谱研究了这些薄膜的光学带隙。通过x射线衍射图确定了样品的结构。在整个研究范围内，薄膜本质上是多晶的，具有纤锌矿(六角形)结构。晶格参数与组成参数X几乎呈线性变化，遵循维加德定律。与其他成本密集的方法相比，烧结是一种非常简单可行的方法。本研究结果将有助于表征CdZnTe材料在光伏领域的应用。

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

Advances in Materials Science and Engineering Materials Science-General Materials Science

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Advances in Materials Science and Engineering is a broad scope journal that publishes articles in all areas of materials science and engineering including, but not limited to: -Chemistry and fundamental properties of matter -Material synthesis, fabrication, manufacture, and processing -Magnetic, electrical, thermal, and optical properties of materials -Strength, durability, and mechanical behaviour of materials -Consideration of materials in structural design, modelling, and engineering -Green and renewable materials, and consideration of materials’ life cycles -Materials in specialist applications (such as medicine, energy, aerospace, and nanotechnology)