Enhanced UV photodetection properties of nanostructured ZnO films synthesized via spray pyrolysis using different zinc precursors

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-05-24 DOI:10.1016/j.optmat.2025.117201

Nabeel M.S. Kaawash , Abdulaziz Almalki , Faisal Katib Alanazi , Hamdan A.S. Al-Shamiri

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引用次数: 0

Abstract

Zinc oxide (ZnO) thin films, produced using ultrasonic spray pyrolysis with zinc nitrate, zinc acetate, and zinc chloride precursors, were assessed for ultraviolet photodetection applications. Characterisations of structural, optical, and electrical properties demonstrated that all films possess a hexagonal wurtzite structure, exhibiting notable differences in performance measures. Zinc acetate-derived films exhibited exceptional UV detection performance, attaining a responsivity of 947.95 A/W, an external quantum efficiency (EQE) of 4538.46 %, and rapid rise/decay durations of 0.091/0.0055 s under 259 nm UV illumination. These remarkable features result from optimised defect density and improved oxygen vacancy dynamics, promoting efficient carrier production and transport. The results underscore a cost-efficient and scalable approach for high-performance ZnO-based UV photodetectors, presenting interesting applications in transparent electronics, environmental monitoring, and UV imaging systems.

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不同锌前驱体喷雾热解法制备纳米结构ZnO薄膜的紫外光探测性能

以硝酸锌、乙酸锌和氯化锌为前驱体，采用超声波喷雾热解法制备氧化锌薄膜，对其紫外光检测应用进行了评价。结构、光学和电学性质的表征表明，所有薄膜都具有六方纤锌矿结构，在性能指标上表现出显著差异。醋酸锌衍生薄膜具有优异的紫外检测性能，在259 nm紫外光照射下，响应率为947.95 a /W，外量子效率（EQE）为4538.46%，快速上升/衰减持续时间为0.091/0.0055 s。这些显著的特性源于优化的缺陷密度和改进的氧空位动力学，促进了高效的载流子生产和运输。研究结果强调了高性能zno基紫外光电探测器的成本效益和可扩展方法，在透明电子、环境监测和紫外成像系统中呈现出有趣的应用。

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

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.