Kinetic Nature of Grain Boundary Formation in As-Grown MoS2 Monolayers

被引：136
|
作者：
Cheng, Jingxin [1 ,2 ]
Jiang, Tao [1 ,2 ]
Ji, Qingqing [3 ]
Zhang, Yu [3 ,4 ]
Li, Zhiming [5 ,6 ]
Shan, Yuwei [1 ,2 ]
Zhang, Yanfeng [3 ,4 ]
Gong, Xingao [5 ,6 ]
Liu, Weitao [1 ,2 ]
Wu, Shiwei [1 ,2 ]
机构：
[1] Fudan Univ, Collaborat Innovat Ctr Adv Microstruct, State Key Lab Surface Phys, Key Lab Micro & Nano Photon Struct MOE, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[3] Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Acad Adv Interdisciplinary Studies,Ctr Nanochem C, Beijing 100871, Peoples R China
[4] Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
[5] Fudan Univ, State Key Lab Surface Phys, Key Lab Computat Phys Sci MOE, Collaborat Innovat Ctr Adv Microstruct, Shanghai 200433, Peoples R China
[6] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源：
ADVANCED MATERIALS | 2015年 / 27卷 / 27期
基金：
中国国家自然科学基金;
关键词：
chemical vapor deposition; grain boundaries; molybdenum disulfide; polycrystalline; second harmonic generation; CHEMICAL-VAPOR-DEPOSITION; TRANSITION-METAL DICHALCOGENIDES; HEXAGONAL BORON-NITRIDE; MOLYBDENUM-DISULFIDE; EPITAXIAL-GROWTH; ATOMIC LAYERS; PHASE GROWTH; GRAPHENE; CRYSTALLINE; HETEROJUNCTIONS;
D O I：
10.1002/adma.201501354
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Grain boundaries in as-grown polycrystalline MoS2 monolayers are revealed by second-harmonic-generation microscopy. Through the anisotropic polarization pattern and phase interference at the grain boundary, grain edge termination and boundary types are identified. Statistical analysis on hundreds of grains shows that grain-boundary formation is driven by kinetics and can be nicely described by the edge attachment growth model. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：4069 / 4074
页数：6
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