2D atomic crystal molecular superlattices by soft plasma intercalation

Loading...
Thumbnail Image
File version

Version of Record (VoR)

Author(s)
Zhang, Lufang
Nan, Haiyan
Zhang, Xiumei
Liang, Qifeng
Du, Aijun
Ni, Zhenhua
Gu, Xiaofeng
Ostrikov, Kostya Ken
Xiao, Shaoqing
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2020
Size
File type(s)
Location
Abstract

Two-dimensional (2D) atomic crystal superlattices integrate diverse 2D layered materials enabling adjustable electronic and optical properties. However, tunability of the interlayer gap and interactions remain challenging. Here we report a solution based on soft oxygen plasma intercalation. 2D atomic crystal molecular superlattices (ACMSs) are produced by intercalating O2+ ions into the interlayer space using the plasma electric field. Stable molecular oxygen layer is formed by van der Waals interactions with adjacent transition metal dichalcogenide (TMD) monolayers. The resulting interlayer gap expansion can effectively isolate TMD monolayers and impart exotic properties to homo-(MoS2[O2]x) and hetero-(MoS2[O2]x/WS2[O2]x) stacked ACMSs beyond typical capacities of monolayer TMDs, such as 100 times stronger photoluminescence and 100 times higher photocurrent. Our potentially universal approach to tune interlayer stacking and interactions in 2D ACMSs may lead to exotic superlattice properties intrinsic to monolayer materials such as direct bandgap pursued for future optoelectronics.

Journal Title

Nature Communications

Conference Title
Book Title
Edition
Volume

11

Issue

1

Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Item Access Status
Note
Access the data
Related item(s)
Subject

Chemical sciences

Engineering

Science & Technology

Multidisciplinary Sciences

Science & Technology - Other Topics

EPITAXIAL-GROWTH

LAYER MOS2

Persistent link to this record
Citation

Zhang, L; Nan, H; Zhang, X; Liang, Q; Du, A; Ni, Z; Gu, X; Ostrikov, KK; Xiao, S, 2D atomic crystal molecular superlattices by soft plasma intercalation, Nature Communications, 2020, 11 (1), pp. 5960

Collections