Two-dimensional Janus van der Waals heterojunctions: A review of recent research progresses |
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| Authors: | Lin Ju Mei Bie Xiwei Zhang Xiangming Chen Liangzhi Kou |
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| Affiliation: | 1. School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Gardens Point Campus, QLD 4001, Brisbane, Australia2. School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China3. Shandong Institute for Food and Drug Control, Jinan 250101, China |
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| Abstract: | Two-dimensional Janus van der Waals (vdW) heterojunctions, referring to the junction containing at least one Janus material, are found to exhibit tuneable electronic structures, wide light adsorption spectra, controllable contact resistance, and sufficient redox potential due to the intrinsic polarization and unique interlayer coupling. These novel structures and properties are promising for the potential applications in electronics and energy conversion devices. To provide a comprehensive picture about the research progress and guide the following investigations, here we summarize their fundamental properties of different types of two-dimensional Janus vdW heterostructures including electronic structure, interface contact and optical properties, and discuss the potential applications in electronics and energy conversion devices. The further challenges and possible research directions of the novel heterojunctions are discussed at the end of this review. |
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| Keywords: | Janus materials van der Waals heterojunctions energy conversion devices |
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