Intercalation in 2D MoS2 nanolayers by wet chemical synthesis for tuning optoelectronic properties

Intercalation of dopants improves the action of MoS 2 and can affect the material characteristics by inserting dopants into crystal gaps between layers. Here, we report a hot injection aqueous solution synthesis approach for incorporation of Au nanoparticles (NPs) on exfoliated MoS 2 nanolayers (NLs...

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Bibliographic Details
Published in:Applied nanoscience 2022, Vol.12 (1), p.17-27
Main Authors: Khawar, Ramsha, Riaz, Ibtsam, Jalil, Rashid
Format: Article
Language:English
Subjects:
Aqueous solutions
Chemical synthesis
Chemistry and Materials Science
Dispersion
Dopants
Electrical properties
Electrical resistivity
Gold
Intercalation
Materials Science
Membrane Biology
Molybdenum disulfide
Nanochemistry
Nanoparticles
Nanotechnology
Nanotechnology and Microengineering
Nucleation
Optical properties
Optoelectronics
Original Article
Sodium citrate
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Summary:Intercalation of dopants improves the action of MoS 2 and can affect the material characteristics by inserting dopants into crystal gaps between layers. Here, we report a hot injection aqueous solution synthesis approach for incorporation of Au nanoparticles (NPs) on exfoliated MoS 2 nanolayers (NLs) using NMP as solvent. This synthesis approach was utilized for hybridization and nucleation of metal NPs with semiconducting NLs to eliminate poor dispersion by maintaining the crystallinity of the pristine MoS 2 . This study builds up the significant part of trisodium citrate (Na 3 Ct) on improving the hybridization of AuNPs on semiconducting MoS 2 nanolayers. The optical, structural, and morphological properties of pristine MoS 2 nanolayers (E-MoS 2 NLs) and AuNPs–MoS 2 nanohybrids were studied via UV–Vis, PL Spectroscopy, FTIR, XRD, SEM/EDX analysis. The successful inclusion and dispersion of AuNPs in MoS 2 NLs by reducing recombination of excited electrons also detecting changes in their electrical properties by conductivity measurements via I–V and EIS analysis.
ISSN:2190-5509
2190-5517
DOI:10.1007/s13204-021-02161-3