Spin coating method deposited nickel oxide thin films with various film thicknesses

Journal of Chemical Research-s Pub Date : 2022-01-01 DOI:10.1177/17475198211066535

Lakel Abdelghani, Lakel Said, B. Said, Belahssen Okba

引用次数: 3

Abstract

The objective of this research is to study the influence of film thickness on the optical and electrical properties of prepared NiO thin films. Nickel oxide thin films have been prepared on the glass substrates by a spin coating technique using nickel nitrate hexahydrate (Ni(NO3)2.6H2O) as a source of materials. The coating process was repeated 11, 13, 15, and 17 layer times to obtain a good NiO thin film. The optical and electrical characterizations were observed to be dependent on each film thickness. The smaller layers have a high optical transmission (over 88%) in the visible range. The bandgap energy was found to be in the range of 3.94–4.06 eV depending on the film thickness. The lowest value of Urbach energy was 0.182 eV. The electrical measurements are investigated by the four-point method; the results show that good electrical conductivity was found for the sample with a thickness around 171 nm.

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自旋镀膜法沉积了不同膜厚的氧化镍薄膜

本研究的目的是研究薄膜厚度对制备的NiO薄膜的光学和电学性能的影响。以六水硝酸镍(Ni(NO3)2.6H2O)为原料，采用自旋镀膜技术在玻璃基板上制备了氧化镍薄膜。涂层过程重复11、13、15、17层，获得良好的NiO薄膜。观察到光学和电学表征依赖于每个薄膜厚度。较小的层在可见光范围内具有较高的光透射率(超过88%)。带隙能量随薄膜厚度的变化在3.94 ~ 4.06 eV之间。乌尔巴赫能最小值为0.182 eV。电测量采用四点法进行研究;结果表明，厚度在171 nm左右的样品具有良好的导电性。

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

Journal of Chemical Research-s 化学科学, 有机化学, 有机合成

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： The Journal of Chemical Research is a peer reviewed journal that publishes full-length review and research papers in all branches of experimental chemistry. The journal fills a niche by also publishing short papers, a format which favours particular types of work, e.g. the scope of new reagents or methodology, and the elucidation of the structure of novel compounds. Though welcome, short papers should not result in fragmentation of publication, they should describe a completed piece of work. The Journal is not intended as a vehicle for preliminary publications. The work must meet all the normal criteria for acceptance as regards scientific standards. Papers that contain extensive biological results or material relating to other areas of science may be diverted to more appropriate specialist journals. Areas of coverage include: Organic Chemistry; Inorganic Chemistry; Materials Chemistry; Crystallography; Computational Chemistry.