aalto1 untyped-item.component.html
Optical Modification of TMD Heterostructures
Loading...
Access rights
openAccess
CC BY
CC BY
Creative Commons license
Except where otherwised noted, this item's license is described as openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
Series
Nano Letters, Volume 25, issue 11, pp. 4379-4385
Abstract
Optical modification is a fast, cost-effective, and scalable approach to tailoring the physical properties of two-dimensional (2D) materials for various applications. However, most previous efforts have focused on modifying individual 2D materials, which fails to utilize the method to its fullest potential. In this paper, heterostructures composed of hBN-capped molybdenum ditelluride (MoTe2) and molybdenum disulfide (MoS2) are optically modified with a continuous wave laser. The process simultaneously thins MoS2 and induces clustering of tellurium atoms from the ablated MoTe2. These structural changes result in significant enhancements of the physical properties, including a 43-fold increase in MoS2 photoluminescence and the transformation of the heterojunction into an anti-ambipolar transistor. These findings highlight a previously unutilized pathway to tune the heterostructure properties for applications in novel electronics and optoelectronics.
Description
Publisher Copyright: © 2025 The Authors. Published by American Chemical Society. | openaire: EC/H2020/834742/EU//ATOP | openaire: EC/H2020/872049/EU//IPN-Bio | openaire: EC/HE/101155102/EU//Q-LAMP
Other note
Citation
Varjamo, S T, Edwards, C, Zhou, Y, Fang, R, Hosseini Shokouh, S H & Sun, Z 2025, 'Optical Modification of TMD Heterostructures', Nano Letters, vol. 25, no. 11, pp. 4379-4385. https://doi.org/10.1021/acs.nanolett.4c06512