Zinc sulfide based thin film photodetector prepared by spray pyrolysis

IF 1.3 4区工程技术 Q4 CHEMISTRY, ANALYTICAL

Instrumentation Science & Technology Pub Date : 2022-08-08 DOI:10.1080/10739149.2022.2108832

Natheer A. Algadri, Ahmad M. Al-Diabat, N. M. Ahmed

引用次数: 4

Abstract

Abstract The chemical spray pyrolysis technique was used to synthesis zinc sulfide (ZnS) thin films without annealing treatment. The thin films were grown on a glass substrate under various Zn:S ratios (1:1,1:2, 1:3). The spray solution was prepared by combining zinc acetate dihydrate and thiourea as precursor materials for Zn2+ and S2- ions, with deionized water serving as the solvent. The results of the ZnS film on glass showed a well-characterized thin film acquired using Zn:S of (1:1,1:2,1:3) molar ratio, nozzle to substrate distance (NSD) of 30 cm and a substrate temperature of 300 °C. Strong peaks (111) were obtained for all samples via X-ray diffraction analysis. The photoluminescence spectrum showed three distinctive peaks at roughly 2.36, 2.98, and 3.6 eV and the energy gap of the synthesized thin film was 3.66 eV. The MSM photodetectors (PDs) made from the layers on glass substrate showed response to UV illumination (400 nm), exhibiting a photosensitivity of 665% at base voltage of 3 V.

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喷雾热解法制备硫化锌基薄膜光电探测器

摘要采用化学喷雾热解技术，在未经退火处理的情况下合成了硫化锌（ZnS）薄膜。在不同的Zn:S比例（1∶1、2∶2、1∶3）下在玻璃衬底上生长薄膜。以去离子水为溶剂，将二水合乙酸锌和硫脲作为Zn2+和S2-离子的前驱体材料，制备了喷雾溶液。玻璃上的ZnS膜的结果显示，使用（1∶1，2，1∶3）摩尔比的Zn:S，喷嘴与衬底的距离（NSD）为30 cm和衬底温度为300 °C。通过X射线衍射分析获得了所有样品的强峰（111）。光致发光光谱在大约2.36、2.98和3.6处显示出三个不同的峰 eV，合成薄膜的能隙为3.66 由玻璃衬底上的层制成的MSM光电探测器（PD）显示出对UV照射的响应（400 nm），在3的基极电压下表现出665%的光敏性五、

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

Instrumentation Science & Technology 工程技术-分析化学

CiteScore

3.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Instrumentation Science & Technology is an internationally acclaimed forum for fast publication of critical, peer reviewed manuscripts dealing with innovative instrument design and applications in chemistry, physics biotechnology and environmental science. Particular attention is given to state-of-the-art developments and their rapid communication to the scientific community. Emphasis is on modern instrumental concepts, though not exclusively, including detectors, sensors, data acquisition and processing, instrument control, chromatography, electrochemistry, spectroscopy of all types, electrophoresis, radiometry, relaxation methods, thermal analysis, physical property measurements, surface physics, membrane technology, microcomputer design, chip-based processes, and more. Readership includes everyone who uses instrumental techniques to conduct their research and development. They are chemists (organic, inorganic, physical, analytical, nuclear, quality control) biochemists, biotechnologists, engineers, and physicists in all of the instrumental disciplines mentioned above, in both the laboratory and chemical production environments. The journal is an important resource of instrument design and applications data.