Large-Area Mechanically-Exfoliated Two-Dimensional Materials on Arbitrary Substrates

0571408 - ÚFCH JH 2024 RIV US eng J - Journal Article
Sahu, Satyam - Haider, Golam - Rodriguez, Álvaro - Plšek, Jan - Mergl, Martin - Kalbáč, Martin - Frank, Otakar - Velický, Matěj
Large-Area Mechanically-Exfoliated Two-Dimensional Materials on Arbitrary Substrates.
Advanced Materials Technologies. Roč. 8, č. 12 (2023), č. článku 2201993. ISSN 2365-709X. E-ISSN 2365-709X
R&D Projects: GA ČR(CZ) GX20-08633X; GA MŠMT EF16_026/0008382
Grant - others:AV ČR(CZ) LQ200402201; Ministerstvo školství, mládeže a tělovýchovy - GA MŠk(CZ) CZ.02.1.01/0.0/0.0/16_026/0008382
Program: Prémie Lumina quaeruntur
Institutional support: RVO:61388955
Keywords : 2D materials * arbitrary substrates * flake transfers * gold-assisted exfoliation * heterostructures * photodetectors
OECD category: Physical chemistry
Impact factor: 6.8, year: 2022
Method of publishing: Open access

Atomically-thin crystals have been shown to be rich in fundamental phenomena and are promising for various applications. Mechanical exfoliation of (2D) materials from bulk crystals is particularly suited for fundamental studies due to the high quality of the resulting monolayer crystals. To date, several techniques have been developed to increase the exfoliation yield, however, they still suffer drawbacks. In this work, a novel method that exploits gold-assisted exfoliation to prepare large-area monolayers of various layered materials followed by their transfer to arbitrary substrates is introduced. X-ray photoelectron, Raman, and photoluminescence spectroscopies are employed to assess the quality of the prepared layers and their optical properties. Then, field-effect transistors and photodetectors are fabricated to demonstrate the suitability of this technique for large-area optoelectronic devices.
Permanent Link: https://hdl.handle.net/11104/0342637