Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session W20: Growth and Function
3:00 PM–5:48 PM,
Thursday, March 7, 2024
Room: M101ABC
Sponsoring
Unit:
DCMP
Chair: Lukasz Plucinski, Forschungszentrum Jülich GmbH
Abstract: W20.00004 : Kinetics study of hydrogen passivation on the zigzag edge sealing and growth of h-BN*
3:36 PM–3:48 PM
Presenter:
Wenjing Zhao
(The Chinese University of Hong Kong)
Authors:
Wenjing Zhao
(The Chinese University of Hong Kong)
Junyi Zhu
(Chinese University of Hong Kong)
Edge kinetics in 2D structures has been a key to understanding the growth. In this talk, the effect of hydrogen passivation on the growth of hexagonal boron nitride (h-BN) was studied. Without hydrogen, the filling process of the gap on bare edges of h-BN is difficult because of the formation of dimers that distorts the edge. With hydrogen passivation, such difficulty can be largely reduced. In addition, hydrogen passivation can reduce the edge bending to the substrate. Additionally, based on a Monte Carlo method, we simulated the sealing and epitaxial growth process for the h-BN. It indicates that the difficulty of the filling process may cause line defect formation.
*This work was supported by the Collaborative Research Fund Young Collaborative Research Grant (No.401585007) from Research Grants Council University Grants Committee of Hong Kong. This work also supported by the SIAT-CUHk Joint Laboratory of Photovoltaic Solar Energy.
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