High-efficiency phase transition of 2H-molybdenum ditelluride films on diverse substrates
Abstract
The synthesis of p-type two-dimensional (2D) semiconductor 2H-MoTe2 films on various dielectric substrates is essential for realizing multilayer architectures for electronic and optoelectronic devices. However, achieving high-efficiency and complete 2H phase fabrication on diverse substrates is challenging. In this study, a multipoint nucleation approach was proposed for achieving controlled phase transitions of MoTe2 films via space confinement in the CVD growth process. This interstitial environment limited Te evaporation and considerably enhanced the reactant collision probability, leading to a high nucleation density of 2H-MoTe2 films. Using the proposed approach, large-area 2H-MoTe2 films were fabricated in ∼30 min. This high-efficiency phase-transition approach has promising implications for the industrial fabrication of large-scale 2D semiconductor films and other potential applications in electronic and optoelectronic devices.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (15)
Xiaowen Zhang
Maolin Chen
Ning Zhao
Institute of Photochemistry and Photofunctional Materials
Chen Liu
Yuxuan Huang
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences
Junzhu Li
Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST) 1 , Thuwal 23955-6900,
Meng Tang
Aitian Chen
School of Physics
Hang Liu
Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay
Xiangpeng Ou
Dongxing Zheng
Physical Science and Engineering Division (PSE)
Udo Schwingenschlögl
Yating Wan
Bo Tian
Hubei Provincial Clinical Research Center for Alzheimer’s Disease, Brain Science and Advanced Technology Institute, Tianyou Hospital, School of Medicine, Wuhan University of Science and Technology
Xixiang Zhang
Material Science and Engineering Program, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.