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Ogilvie SP, Large MJ, Wood HJ, Amorim Graf A, Lee F, Salvage JP, King AAK, Dalton AB. Size selection and thin-film assembly of MoS 2 elucidates thousandfold conductivity enhancement in few-layer nanosheet networks. NANOSCALE 2022; 14:320-324. [PMID: 34932055 DOI: 10.1039/d1nr05815k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Printed electronics based on liquid-exfoliated nanosheet networks are limited by inter-nanosheet junctions and thick films which hinder field-effect gating. Here, few-layer molybdenum disulfide nanosheets are assembled by Langmuir deposition into thin films, and size selection is shown to lead to a thousandfold conductivity enhancement with potential applicability to all nanosheet networks.
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Affiliation(s)
| | | | | | | | - Frank Lee
- University of Sussex, Brighton, BN1 9RH, UK.
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Li S, Sun J, Guan J. Strategies to improve electrocatalytic and photocatalytic performance of two-dimensional materials for hydrogen evolution reaction. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63693-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rodriguez CLC, Muñoz PAR, Donato KZ, Seixas L, Donato RK, Fechine GJM. Understanding the unorthodox stabilization of liquid phase exfoliated molybdenum disulfide (MoS 2) in water medium. Phys Chem Chem Phys 2019; 22:1457-1465. [PMID: 31859694 DOI: 10.1039/c9cp06422b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Molybdenum disulfide is a highly esteemed 2D material with interesting applications in nanoelectronics, composites, biotechnology and beyond. Its production through liquid-phase exfoliation in H2O is low-cost and eco-friendly. Herein, we present a detailed experimental and theoretical investigation seeking to explain the peculiar stability of MoS2 in H2O medium. By combining different microscopic (SEM, AFM and OM), spectrometric (Raman, UV-vis and AFM-FTIR), scattering (DLS) and ab initio simulation techniques, an edge-functionalization hypothesis for the excellent solvent properties of water for producing few-layer MoS2 has been demonstrated.
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Affiliation(s)
- Camila L C Rodriguez
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil.
| | - Pablo A R Muñoz
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil.
| | - Katarzyna Z Donato
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil. and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Leandro Seixas
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil.
| | - Ricardo K Donato
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil. and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Guilhermino J M Fechine
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil.
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