BIOMAT Database Logo BIOMAT Database Logo

Grain wall boundaries in centimeter-scale continuous monolayer WS2 film grown by chemical vapor deposition. 2018

Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
State Key Lab of Metastable Materials Science & Technology and Key Laboratory for Microstructure Material Physics of Hebei Province, Yanshan University, Qinhuangdao 066004, People's Republic of China.

Centimeter-scale continuous monolayer WS2 film with large tensile strain has been successfully grown on oxidized silicon substrate by chemical vapor deposition, in which monolayer grains can be more than 200 μm in size. Monolayer WS2 grains are observed to merge together via not only traditional grain boundaries but also non-traditional ones, which are named as grain walls (GWs) due to their nanometer-scale widths. The GWs are revealed to consist of two or three layers. Though not a monolayer, the GWs exhibit significantly enhanced fluorescence and photoluminescence. This enhancement may be attributed to abundant structural defects such as stacking faults and partial dislocations in the GWs, which are clearly observable in atomically resolved high resolution transmission electron microscopy and scanning transmission electron microscopy images. Moreover, GW-based phototransistor is found to deliver higher photocurrent than that based on monolayer film. These features of GWs provide a clue to microstructure engineering of monolayer WS2 for specific applications in (opto)electronics.

UI MeSH Term Description Entries

Related Publications

Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Auger Recombination in Chemical Vapor Deposition-Grown Monolayer WS2.
December 2016, The journal of physical chemistry letters,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Large-Area WS2 Film with Big Single Domains Grown by Chemical Vapor Deposition.
October 2017, Nanoscale research letters,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Doping Graphene Transistors Using Vertical Stacked Monolayer WS2 Heterostructures Grown by Chemical Vapor Deposition.
January 2016, ACS applied materials & interfaces,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Investigation of Single-Wall MoS2 Monolayer Flakes Grown by Chemical Vapor Deposition.
January 2016, Nano-micro letters,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
High-Performance WS2 Monolayer Light-Emitting Tunneling Devices Using 2D Materials Grown by Chemical Vapor Deposition.
April 2019, ACS nano,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
BiVO4 thin film photoanodes grown by chemical vapor deposition.
January 2014, Physical chemistry chemical physics : PCCP,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Monolayer MoSe2 grown by chemical vapor deposition for fast photodetection.
August 2014, ACS nano,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Transport properties of monolayer MoS2 grown by chemical vapor deposition.
January 2014, Nano letters,
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
ZnO-Controlled Growth of Monolayer WS2 through Chemical Vapor Deposition.
June 2019, Materials (Basel, Switzerland),
Zhiyan Jia, and Wentao Hu, and Jianyong Xiang, and Fusheng Wen, and Anmin Nie, and Congpu Mu, and Zhisheng Zhao, and Bo Xu, and Yongjun Tian, and Zhongyuan Liu
Raman Study of Strain Relaxation from Grain Boundaries in Epitaxial Graphene Grown by Chemical Vapor Deposition on SiC.
March 2019, Nanomaterials (Basel, Switzerland),
Copied contents to your clipboard!