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Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation

[Image: see text] Here, we report the synthesis of MoS(2)/graphene heterostructure in single-stage, liquid-phase exfoliation using a 7:3 isopropyl alcohol/water mixture. Further, the synthesized heterostructure was characterized using UV–visible and micro-Raman spectroscopies, transmission electron...

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Autores principales: Kandhasamy, Durai Murugan, Muthu Mareeswaran, Paulpandian, Chellappan, Selvaraju, Namasivayam, Dhenadhayalan, Aldahish, Afaf, Chidambaram, Kumarappan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8757342/
https://www.ncbi.nlm.nih.gov/pubmed/35036729
http://dx.doi.org/10.1021/acsomega.1c05250
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author Kandhasamy, Durai Murugan
Muthu Mareeswaran, Paulpandian
Chellappan, Selvaraju
Namasivayam, Dhenadhayalan
Aldahish, Afaf
Chidambaram, Kumarappan
author_facet Kandhasamy, Durai Murugan
Muthu Mareeswaran, Paulpandian
Chellappan, Selvaraju
Namasivayam, Dhenadhayalan
Aldahish, Afaf
Chidambaram, Kumarappan
author_sort Kandhasamy, Durai Murugan
collection PubMed
description [Image: see text] Here, we report the synthesis of MoS(2)/graphene heterostructure in single-stage, liquid-phase exfoliation using a 7:3 isopropyl alcohol/water mixture. Further, the synthesized heterostructure was characterized using UV–visible and micro-Raman spectroscopies, transmission electron microscopy (TEM), and dynamic light scattering (DLS) analysis. UV–visible and micro-Raman analyses confirmed that the synthesized heterostructure had mostly few-layered (two-to-four sheets) MoS(2). The photophysical properties of the heterostructure were analyzed using steady-state and time-resolved luminescence techniques. Enhanced photoluminescence was observed in the case of the heterostructure probably due to an increase in the defect sites or reduction in the rate of nonradiative decay upon formation of the sandwiched heterostructure. Applications of this heterostructure for fluorescence live-cell imaging were carried out, and the heterostructure demonstrated a better luminescence contrast compared to its individual counterpart MoS(2) in phosphate-buffered saline (PBS).
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spelling pubmed-87573422022-01-13 Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation Kandhasamy, Durai Murugan Muthu Mareeswaran, Paulpandian Chellappan, Selvaraju Namasivayam, Dhenadhayalan Aldahish, Afaf Chidambaram, Kumarappan ACS Omega [Image: see text] Here, we report the synthesis of MoS(2)/graphene heterostructure in single-stage, liquid-phase exfoliation using a 7:3 isopropyl alcohol/water mixture. Further, the synthesized heterostructure was characterized using UV–visible and micro-Raman spectroscopies, transmission electron microscopy (TEM), and dynamic light scattering (DLS) analysis. UV–visible and micro-Raman analyses confirmed that the synthesized heterostructure had mostly few-layered (two-to-four sheets) MoS(2). The photophysical properties of the heterostructure were analyzed using steady-state and time-resolved luminescence techniques. Enhanced photoluminescence was observed in the case of the heterostructure probably due to an increase in the defect sites or reduction in the rate of nonradiative decay upon formation of the sandwiched heterostructure. Applications of this heterostructure for fluorescence live-cell imaging were carried out, and the heterostructure demonstrated a better luminescence contrast compared to its individual counterpart MoS(2) in phosphate-buffered saline (PBS). American Chemical Society 2021-12-31 /pmc/articles/PMC8757342/ /pubmed/35036729 http://dx.doi.org/10.1021/acsomega.1c05250 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Kandhasamy, Durai Murugan
Muthu Mareeswaran, Paulpandian
Chellappan, Selvaraju
Namasivayam, Dhenadhayalan
Aldahish, Afaf
Chidambaram, Kumarappan
Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title_full Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title_fullStr Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title_full_unstemmed Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title_short Synthesis and Photoluminescence Properties of MoS(2)/Graphene Heterostructure by Liquid-Phase Exfoliation
title_sort synthesis and photoluminescence properties of mos(2)/graphene heterostructure by liquid-phase exfoliation
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8757342/
https://www.ncbi.nlm.nih.gov/pubmed/35036729
http://dx.doi.org/10.1021/acsomega.1c05250
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