Review Article


2022, 15(1): 104–122


Two-dimensional selenium and its composites for device applications

Zhe Shi1,2,§, Hongqiao Zhang3,§, Karim Khan2, Rui Cao2, Kaikai Xu3 (✉), and Han Zhang2 (✉)

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1 School of Physics & New Energy, Xuzhou University of Technology, Xuzhou 221018, China
2 Shenzhen Engineering Laboratory of phosphorene and Optoelectronics, Collaborative Innovation Center for Optoelectronic Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China
3 State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
§ Zhe Shi and Hongqiao Zhang contributed equally to this work.

Keywords: two-dimensional materials, selenium, batteries, photodetectors, photothermal effect
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  • Abstract
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Two-dimensional (2D) selenium was synthesized successfully in 2017. Its advanced properties, including size-dependent bandgap, excellent environmental robustness, strong photoluminescence effect, anisotropic thermal conductivity, and high photoconductivity, render it and selenium-based composites a promising candidate for various device applications. These include batteries, modulators, photodetectors, and photothermal effects in medical applications. However, compared to other commonly used 2D materials, such as graphene, transition metal dichalcogenides, and black phosphorus, 2D Se is much less known. Motivated by the need to overcome this lack of knowledge, this article focuses on recent progress and elucidates the crystal structure, synthesis methods, physical properties, applications, challenges, and prospects of 2D Se nanoflakes.
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Two-dimensional selenium and its composites for device applications. Nano Res. 2022, 15(1): 104–122

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