Tyck till om SwePub Sök
här!
Sökning: onr:"swepub:oai:DiVA.org:uu-338543" >
A real-time Raman s...
A real-time Raman spectroscopy study of the dynamics of laser-thinning of MoS2 flakes to monolayers
-
Gu, Enyao (författare)
-
Wang, Qiyuan (författare)
-
- Zhang, Youwei (författare)
- Uppsala universitet,Fasta tillståndets elektronik,State Key Laboratory of ASIC & System, School of Information Science and Technology, Fudan University, Shanghai 200433, China
-
visa fler...
-
Cong, Chunxiao (författare)
-
Hu, Laigui (författare)
-
Tian, Pengfei (författare)
-
Liu, Ran (författare)
-
- Zhang, Shi-Li (författare)
- Uppsala universitet,Fasta tillståndets elektronik
-
Qiu, Zhi-Jun (författare)
-
visa färre...
-
(creator_code:org_t)
- AIP Publishing, 2017
- 2017
- Engelska.
-
Ingår i: AIP Advances. - : AIP Publishing. - 2158-3226. ; 7:12
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
http://aip.scitation...
-
https://uu.diva-port... (primary) (Raw object)
-
https://aip.scitatio...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Transition metal dichalcogenides (TMDCs) in monolayer form have attracted a great deal of attention for electronic and optical applications. Compared to mechanical exfoliation and chemical synthesis, laser thinning is a novel and unique “on-demand” approach to fabricate monolayers or pattern desired shapes with high controllability and reproducibility. Its successful demonstration motivates a further exploration of the dynamic behaviour of this local thinning process. Here, we present an in-situ study of void formation by laser irradiation with the assistance of temporal Raman evolution. In the analysis of time-dependent Raman intensity, an empirical formula relating void size to laser power and exposure time is established. Void in thinner MoS2 flakes grows faster than in thicker ones as a result of reduced sublimation temperature in the two-dimensional (2D) materials. Our study provides useful insights into the laser-thinning dynamics of 2D TMDCs and guidelines for an effective control over the void formation.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas