Engineering and Technology

Evolution of defect formation during atomically precise desulfurization of monolayer MoS2

J. Lee, J. H. Kim, et al.

Discover how Jong-Young Lee and colleagues have unveiled the intricate dynamics of defect formation in monolayer MoS2 when exposed to hydrogen plasma. Their findings highlight the delicate balance between material integrity and the introduction of defects, paving the way for advancements in photocatalysis and innovative materials like Janus heterostructures.

00:00

Playback language: English

Index

Abstract

This study investigates the evolution of defect formation in monolayer MoS2 exposed to hydrogen plasma using atomic-scale microscopy. Initially, only top-layer sulfur atoms are removed, preserving the molybdenum layer and bottom sulfur atoms. Prolonged exposure leads to hexagonal nanocracks due to strain relaxation. Increasing defect density reduces photoluminescence and conductivity, while friction increases by 50%. The findings detail defect formation during MoS2 desulfurization and aid in designing symmetry-breaking transition metal dichalcogenides for applications like photocatalysis and Janus heterostructures.

Publisher

Communications Materials

Published On

Jul 23, 2021

Authors

Jong-Young Lee, Jong Hun Kim, Yeonjoon Jung, June Chul Shin, Yangjin Lee, Kwanpyo Kim, Namwon Kim, Arend M. van der Zande, Jangyup Son, Gwan-Hyoung Lee

Related Publications

Explore these studies to deepen your understanding of the subject.

Education

Longitudinal analysis of teacher self-efficacy evolution during a STEAM professional development program: a qualitative case study

H. Jiang, R. Chugh, et al.

Food Science and Technology

Chromosome-level genome assembly of bunching onion illuminates genome evolution and flavor formation in *Allium* crops

N. Liao, Z. Hu, et al.

Medicine and Health

Single-cell sequencing of ascites fluid illustrates heterogeneity and therapy-induced evolution during gastric cancer peritoneal metastasis

X. Huang, M. Pang, et al.

Chemistry

Ligand effect on switching the rate-determining step of water oxidation in atomically precise metal nanoclusters

Z. Liu, H. Tan, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny