溶液生长法制备Zn × Cd 1-x S纳米晶层的物理性质

International Journal of Online Engineering Pub Date : 2012-08-31 DOI:10.5923/J.IJOE.20120202.01

K. Nagamani, V. Reddy, Y. Lingappa, K. Reddy, R. Miles

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引用次数: 20

摘要

近年来，硫化锌镉(ZnxCd1-xS)合金化合物因其具有可调谐的能隙和晶格参数而在光电子领域，特别是光伏器件中受到广泛关注。通过改变锌的组成来控制ZnxCd1-xS的能带隙，以适应太阳能电池中吸收材料的材料性能。本文报道了溶液生长法沉积在康宁玻璃衬底上的ZnxCd1-xS薄膜中，锌成分对其物理性能的影响。这些层是为不同的“x”值准备的，这些值在0 - 1.0 at的范围内变化。%。利用EDAX, XRD, SEM和UV-Vis-NIR分光光度计对生长层进行了表征。所有层均以强(002)面为优选取向，呈现六方晶体结构。这些层的组成与溶液中元素的组成大致一致。锌含量为0.75，带隙为3.88 eV时，薄膜的平均透过率为72%。

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Physical Properties of Zn x Cd 1-x S Nanocrytalline Layers Synthesized by Solution Growth Method

In recent years, zinc cadmium sulphide (ZnxCd1-xS) alloy compounds have paid much attention in the fields of opto-electronics, particularly in photovoltaic devices because of its tunable energy gap and the lattice parameters. The energy band gap of ZnxCd1-xS is controlled by the change of Zn-composition in order to suit the material properties with that of absorber material in solar cells. In this paper, we report on the effect of Zn-composition on physical properties of ZnxCd1-xS thin films deposited on corning glass substrates by solution growth method. The layers were prepared for different 'x' values that vary in the range, 0 - 1.0 at. %. The as-grown layers were characterized using EDAX, XRD, SEM, and UV-Vis-NIR spectrophotometers. All the layers showed a strong (002) plane as the preferred orientation that exhibited the hexagonal crystal structure. The composition of the layers agrees approximately with that of the elements in the solution. The films showed an average optical transmittance of 72 % at a zinc composition of 0.75 with a band gap of 3.88 eV.

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来源期刊

International Journal of Online Engineering COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS-

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： We would like to inform you, that iJOE, the ''International Journal of Online Engineering'' will accept now also papers in the field of Biomedical Engineering and e-Health''. iJOE will therefore be published from January 2019 as the ''International Journal of Online and Biomedical Engineering''. The objective of the journal is to publish and discuss fundamentals, applications and experiences in the fields of Online Engineering (remote engineering, virtual instrumentation and online simulations, etc) and Biomedical Engineering/e-Health. The use of cyber-physical systems, virtual and remote controlled devices and remote laboratories are the directions for advanced teleworking/e-working environments. In general, online engineering is a future trend in engineering and science. Due to the growing complexity of engineering tasks, more and more specialized and expensive equipment as well as software tools and simulators, shortage of highly qualified staff, and the demands of globalization and collaboration activities, it become essential to utilize cyber cloud technologies to maximize the use of engineering resources. Online engineering is the way to address these issues. Considering these, one focus of the International Journal of Online and Biomedical Engineering is to provide a platform to publish fundamentals, applications and experiences in the field of Online Engineering, for example: Remote Engineering Internet of Things Cyber-physical Systems Digital Twins Industry 4.0 Virtual Instrumentation. An important application field of online engineering tools and principles are Biomedical Engineering / e-Health. Topics we are interested to publish are: Automation Technology for Medical Applications Big Data in Medicine Biomedical Devices Biosensors Biosignal Processing Clinical Informatics Computational Neuroscience Computer-Aided Surgery.