金纳米粒子修饰ZnO纳米棒和氧化石墨烯基纳米复合材料增强紫外光探测

IF 1.8 4区 物理与天体物理 Q3 OPTICS
Deepjyoti Chetry, Pritymala Basumatary, Karen Das, Priyanka Kakoty
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引用次数: 0

摘要

综合分析了水热法制备的由还原氧化石墨烯(rGO)和ZnO纳米棒(NR)组成的金纳米粒子装饰纳米复合材料作为紫外光电探测器的可能性。研究了氧化石墨烯在ZnO中的负载作用和Au修饰在氧化石墨烯/ZnO的最佳组合中对光催化效果的增强作用。利用x射线衍射、扫描电子显微镜、能量衍射和紫外可见光谱对制备的材料进行形态、结构和光学属性分析。在黑暗和紫外环境(370 nm)下,在5 V偏置电压下,金修饰纳米复合材料的光电流从2.19 nA增加到6.14 mA,在实验复合材料中表现得更好。分析了金修饰纳米复合材料的响应性和探测性随入射紫外光强度的增加而变化。本文对研究结果进行了分析,并对紫外光探测机理进行了详细的说明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
ZnO Nanorod and rGO based nanocomposite decorated with Au nanoparticles for enhanced UV photodetection
A comprehensive analysis of a hydrothermally prepared Au nanoparticle decorated nanocomposite of reduced graphene oxide (rGO) and a ZnO nanorod (NR) for possible use as a UV photodetector is presented. The effect of rGO loading in ZnO and incorporation of Au decoration in the best combination of rGO/ZnO for possible enhancement of a photocatalytic effect are experimented. X-ray diffraction, scanning electron microscopy, energy diffraction, and UV-Vis spectroscopy are done for morphological, structural, and optical attribute analysis of the prepared materials. An increase in photocurrent is seen from 2.19 nA to 6.14 mA in dark and UV environments (370 nm) at 5 V bias voltage for the Au decorated nanocomposite, which is found to be better among the experimented composites. The responsivity and detectivity of the Au decorated nanocomposite are analyzed with the increase in incident UV light intensities. The findings are analyzed, and an explanation of the detailed UV photodetection mechanism is outlined in this paper.
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来源期刊
CiteScore
4.00
自引率
5.30%
发文量
374
审稿时长
2.1 months
期刊介绍: The Journal of the Optical Society of America B (JOSA B) is a general optics research journal that complements JOSA A. It emphasizes scientific research on the fundamentals of the interaction of light with matter such as quantum optics, nonlinear optics, and laser physics. Topics include: Advanced Instrumentation and Measurements Fiber Optics and Fiber Lasers Lasers and Other Light Sources from THz to XUV Light-Induced Phenomena Nonlinear and High Field Optics Optical Materials Optics Modes and Structured Light Optomechanics Metamaterials Nanomaterials Photonics and Semiconductor Optics Physical Optics Plasmonics Quantum Optics and Entanglement Quantum Key Distribution Spectroscopy and Atomic or Molecular Optics Superresolution and Advanced Imaging Surface Optics Ultrafast Optical Phenomena Wave Guiding and Optical Confinement JOSA B considers original research articles, feature issue contributions, invited reviews and tutorials, and comments on published articles.
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