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Li-Ping, Ding
다차원 탄소재료 연구단
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Robust growth of two-dimensional metal dichalcogenides and their alloys by active chalcogen monomer supply

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Title
Robust growth of two-dimensional metal dichalcogenides and their alloys by active chalcogen monomer supply
Author(s)
Zuo, Yonggang; Liu, Can; Liping Ding; Qiao, Ruixi; Tian, Jinpeng; Liu, Chang; Wang, Qinghe; Xue, Guodong; You, Yilong; Guo, Quanlin; Wang, Jinhuan; Fu, Ying; Liu, Kehai; Zhou, Xu; Hong, Hao; Wu, Muhong; Lu, Xiaobo; Yang, Rong; Zhang, Guangyu; Yu, Dapeng; Wang, Enge; Bai, Xuedong; Feng Ding; Liu, Kaihui
Publication Date
2022-12-01
Journal
Nature communications, v.13, no.1
Publisher
NLM (Medline)
Abstract
© 2022. The Author(s).The precise precursor supply is a precondition for controllable growth of two-dimensional (2D) transition metal dichalcogenides (TMDs). Although great efforts have been devoted to modulating the transition metal supply, few effective methods of chalcogen feeding control were developed. Here we report a strategy of using active chalcogen monomer supply to grow high-quality TMDs in a robust and controllable manner, e.g., MoS2 monolayers perform representative photoluminescent circular helicity of ~92% and electronic mobility of ~42 cm2V-1s-1. Meanwhile, a uniform quaternary TMD alloy with three different anions, i.e., MoS2(1-x-y)Se2xTe2y, was accomplished. Our mechanism study revealed that the active chalcogen monomers can bind and diffuse freely on a TMD surface, which enables the effective nucleation, reaction, vacancy healing and alloy formation during the growth. Our work offers a degree of freedom for the controllable synthesis of 2D compounds and their alloys, benefiting the development of high-end devices with desired 2D materials.
URI
https://pr.ibs.re.kr/handle/8788114/11239
DOI
10.1038/s41467-022-28628-7
ISSN
2041-1723
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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