Web of Science: 8 citations, Scopus: 8 citations, Google Scholar: citations,
Fabrication and characterization of large-area suspended MoSe2 crystals down to the monolayer
Varghese, Sebin (Institut Català de Nanociència i Nanotecnologia)
Saleta Reig, David (Institut Català de Nanociència i Nanotecnologia)
Mehew, Jake D. (Institut Català de Nanociència i Nanotecnologia)
Block, Alexander (Institut Català de Nanociència i Nanotecnologia)
Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia)
Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia)
Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia)
Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia)

Date: 2021
Abstract: Many layered materials, such as graphene and transition metal dichalcogenides, can be exfoliated down to atomic or molecular monolayers. These materials exhibit exciting material properties that can be exploited for several promising device concepts. Thinner materials lead to an increased surface-to-volume ratio, with mono- and bi-layers being basically pure surfaces. Thin crystals containing more than two layers also often behave as an all-surface material, depending on the physical property of interest. As a result, flakes of layered materials are typically highly sensitive to their environment, which is undesirable for a broad range of studies and potential devices. Material systems based on suspended flakes overcome this issue, yet often require complex fabrication procedures. Here, we demonstrate the relatively straightforward fabrication of exfoliated MoSe flakes down to the monolayer, suspended over unprecedentedly large holes with a diameter of 15 µm. We describe our fabrication methods in detail, present characterization measurements of the fabricated structures, and, finally, exploit these suspended flakes for accurate optical absorption measurements.
Grants: European Commission 804349
Ministerio de Economía y Competitividad FPI-SO 2019
Ministerio de Economía y Competitividad FPI-SO 2018
Ministerio de Economía y Competitividad SEV-2017-0706
Ministerio de Ciencia e Innovación PGC2018-101743-B-I00
Ministerio de Ciencia e Innovación RYC-2017-22330
Agencia Estatal de Investigación PID2019-111673GB-I00
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: Suspended flakes ; Transition metal dichalcogenides ; MoSe2 ; Dry-transfer ; Optical absorption
Published in: JPhys materials, Vol. 4, issue 4 (Oct. 2021) , art. 46001, ISSN 2515-7639

DOI: 10.1088/2515-7639/ac2060


12 p, 2.2 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2022-11-15, last modified 2022-12-07



   Favorit i Compartir