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Isomeric Compound Dendrites on a Monolayer WS2 Substrate: Morphological Engineering and Formation Mechanism

文献类型：期刊论文

作者Shen, Jun3,4; Zhan, Li3,4; Wang, Caimu2; Wu, Chuanqiang1,6; Zhang, Xiaoxian5; Yan, Jiangbing4; Wang, Xu4; Ge, Binghui1,6; Long, Mingsheng1,6; Zhao, Hong-Quan3,4
刊名ACS APPLIED NANO MATERIALS
出版日期2021-08-27
卷号4期号:8页码:8408-8416
关键词WS2 isomeric dendrites first-principles calculation chemical vapor deposition (CVD)
ISSN号2574-0970
DOI10.1021/acsanm.1c01651
通讯作者Zhan, Li(zhanli19@mails.ucas.ac.cn) ; Guo, Wei(weiguo7@bit.edu.cn)
英文摘要Dendritic morphology as a defining feature for a large number of natural things like pinetrees, snowflakes, and neuronal cells is attractive and ubiquitous in nature. Until now, the formation mechanism of a dendritic structure based on some type of nonequilibrium growth process not only for those around nature but also for synthetic materials is still far from being clearly understood. Herein, WS2 dendrites with unique 6-fold symmetry produced on the surface of a two-dimensional monolayer WS2 film were successfully obtained on a SiO2/Si substrate by the chemical vapor deposition method. A monolayer WS2 film with pristine hexagonal symmetry plays a crucial role in stimulating the formation of a WS2 dendritic structure. In addition, these dendrites exhibit an average fractal dimension of similar to 1.90, which is larger than the classical fractal dimension of similar to 1.66 deduced by diffusion-limited aggregation. The first-principles calculations indicate that the prominent diffusion anisotropy of a monomer precursor and the lattice symmetry of a WS2 film determine the evolution of a dendritic structure. This work will reveal in detail and represent the intrinsic mechanism and dynamic process in the nonequilibrium crystal growth of two-dimensional crystals. Furthermore, it will be potential to instruct the artificial design and synthesis of an isomeric dendritic structure by morphology engineering on the basis of two-dimensional crystals.
资助项目Science and Technology Service Network Initiative of Chinese Academy of Sciences[KFJ-STS-QYZD-179] ; Science and Technology Service Network Initiative of Chinese Academy of Sciences[KFJ-STS-QYZD-123] ; Science and Technology Service Network Initiative of Chinese Academy of Sciences[Y79H030]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000692034900085
出版者AMER CHEMICAL SOC
源URL[http://119.78.100.138/handle/2HOD01W0/14245]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Zhan, Li; Guo, Wei
作者单位1.Anhui Univ, Inst Phys Sci, Informat Mat & Intelligent Sensing Lab Anhui Prov, Key Lab Struct & Funct Regulat Hybrid Mat,Minist, Hefei, Anhui, Peoples R China
2.Ctr Quantum Phys, Sch Phys, Beijing Inst Technol, Key Lab Adv Optoelect Quantum Architecture & Meas, Beijing 100081, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
5.Beijing Jiaotong Univ, Inst Optoelect Technol, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China
6.Anhui Univ, Inst Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Key Lab Struct & Funct Regulat Hybrid Mat,Minist, Hefei, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Jun,Zhan, Li,Wang, Caimu,et al. Isomeric Compound Dendrites on a Monolayer WS2 Substrate: Morphological Engineering and Formation Mechanism[J]. ACS APPLIED NANO MATERIALS,2021,4(8):8408-8416.
APA Shen, Jun.,Zhan, Li.,Wang, Caimu.,Wu, Chuanqiang.,Zhang, Xiaoxian.,...&Guo, Wei.(2021).Isomeric Compound Dendrites on a Monolayer WS2 Substrate: Morphological Engineering and Formation Mechanism.ACS APPLIED NANO MATERIALS,4(8),8408-8416.
MLA Shen, Jun,et al."Isomeric Compound Dendrites on a Monolayer WS2 Substrate: Morphological Engineering and Formation Mechanism".ACS APPLIED NANO MATERIALS 4.8(2021):8408-8416.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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