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Fabrication of PbS QDs/Graphene Heterostructure Photoelectrochemical Cell by Electrochemical Atomic Layer Epitaxy Method

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In this work, PbS quantum dots were for the first time directly deposited on graphene nanowalls substrate by electrochemical atomic layer epitaxy (ECALE) deposition method. The morphology, composition and 3D structure of PbS/graphene were characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) and Raman spectrum, respectively. The sensitized three-dimensional graphene electrode with PbS quantum dots had great improvement in the performance of photo-electrochemical (PEC), with photocurrent almost four times that of pure graphene film, which presents its great application potential in the fields of photodetector or solar cell.
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Keywords: Electrochemical Atomic Layer Epitaxy Deposition; Graphene Nanowalls; Pbs

Document Type: Research Article

Affiliations: 1: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China 2: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China

Publication date: January 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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