Space-confined and substrate-directed synthesis of transition-metal dichalcogenide nanostructures with tunable dimensionality

Zhuojun Duan; Tao Chen; Jianwei Shi; Jin Li; Kui Song; Chan Zhang; Sujuan Ding; Bo Li; Guang Wang; Sigui Hu; Xiaoyue He; Chaoyu He; Hua Xu; Xinfeng Liu; Chuanhong Jin; Jianxin Zhong; Guolin Hao

doi:10.1016/j.scib.2020.03.002

Space-confined and substrate-directed synthesis of transition-metal dichalcogenide nanostructures with tunable dimensionality

Sci Bull (Beijing). 2020 Jun 30;65(12):1013-1021. doi: 10.1016/j.scib.2020.03.002. Epub 2020 Mar 6.

Authors

Zhuojun Duan¹, Tao Chen², Jianwei Shi³, Jin Li¹, Kui Song⁴, Chan Zhang¹, Sujuan Ding², Bo Li⁵, Guang Wang⁶, Sigui Hu⁷, Xiaoyue He⁷, Chaoyu He¹, Hua Xu⁸, Xinfeng Liu³, Chuanhong Jin⁹, Jianxin Zhong¹, Guolin Hao¹⁰

Affiliations

¹ School of Physics and Optoelectronics and Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Xiangtan University, Xiangtan 411105, China.
² Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China.
³ CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
⁴ College of Civil Engineering and Mechanics, Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, China.
⁵ Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China.
⁶ Department of Physics, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China.
⁷ Songshan Lake Materials Laboratory, Dongguan 523808, China.
⁸ Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi'an 710119, China.
⁹ Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
¹⁰ School of Physics and Optoelectronics and Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Xiangtan University, Xiangtan 411105, China; Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China. Electronic address: [email protected].

PMID: 36659016
DOI: 10.1016/j.scib.2020.03.002

Abstract

Atomically thin transition-metal dichalcogenide (TMDC) nanostructures are predicted to exhibit novel physical properties that make them attractive candidates for the fabrication of electronic and optoelectronic devices. However, TMDCs tend to grow in the form of two-dimensional nanoplates (NPs) rather than one-dimensional nanoribbons (NRs) due to their native layered structure. Herein, we have developed a space-confined and substrate-directed chemical vapor deposition strategy for the controllable synthesis of WS₂, WSe₂, MoSe₂, MoS₂, WS_2(1-_x₎Se₂_x NPs and NRs. TMDC NRs with lengths ranging from several micrometers to 100 μm have been obtained and the widths of TMDC NRs can be effectively tuned. Moreover, we found that TMDC NRs show different growth behaviors on van der Waals (vdW) and non-vdW substrates. The micro-nano structures, optical and electronic properties of synthesized TMDC NRs have been systematically investigated. This approach provides a general strategy for controllable synthesis of TMDC NRs, which makes these materials easily accessible as functional building blocks for novel optoelectronic devices.

Keywords: Chemical vapor deposition; Nanoplate; Nanoribbon; Space-confined and substrate-directed strategy; Transition-metal dichalcogenide.