Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres

A. J. Cheah, W. S. Chiu, P. S. Khiew, Shahidan Radiman, Muhammad Azmi Abdul Hamid

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In current study, a novel 2H-MoS 2 nanospheres were successfully synthesized and underwent structural- as well as optical-property characterizations. The MoS 2 were prepared by one pot hydrothermal approach through adopting L-cysteine as environmentally-benignchalcogenide precursor. TEM image shows that the as-synthesized MoS 2 appear to be spherical in shape with size distribution in the range of 120 nm - 180 nm. HRTEM lattice-fringes imaging further elucidate that the interlayer spacing at the edges is equal to be 0.62 nm that correspond to (002) plane stacking. Also, the HRTEM image clearly-illustrate that the internal microstructure of MoS 2 composed of randomly-arrayed alternating layers, which render the postulation that the formation of nanosphere is driven by self-assembly of individual layers into globular morphology. XRD diffractogram that appear to be broad and unresolved reveal the partially crystalline nature of the sample. Optical-absorption spectra depicts the sample is visible active with featureless absorption, which can attribute to indirect transition of the excitions generated. By using Tauc plot, the bandgap energy is determined to be 1.75 eV, which reflect the nanospheres are indeed visible-active nanostructures.

Original languageEnglish
Title of host publicationProceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014
EditorsFauziah Othman, Aamir Hussain Bhat, Sujan Chowdhury, Norani Muti Binti Mohamed, Othman Bin Mamat, Patthi Bin Hussain
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413160
DOIs
Publication statusPublished - 22 Jul 2015
Event23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014 - Tronoh, Malaysia
Duration: 10 Dec 201412 Dec 2014

Publication series

NameAIP Conference Proceedings
Volume1669
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014
CountryMalaysia
CityTronoh
Period10/12/1412/12/14

Fingerprint

molybdenum disulfides
cysteine
synthesis
optical spectrum
self assembly
interlayers
optical absorption
plots
spacing
absorption spectra
optical properties
transmission electron microscopy
microstructure
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Cheah, A. J., Chiu, W. S., Khiew, P. S., Radiman, S., & Abdul Hamid, M. A. (2015). Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres In F. Othman, A. H. Bhat, S. Chowdhury, N. M. B. Mohamed, O. Bin Mamat, & P. Bin Hussain (Eds.), Proceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014 [4919168] (AIP Conference Proceedings; Vol. 1669). American Institute of Physics Inc.. https://doi.org/10.1063/1.4919168

Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres . / Cheah, A. J.; Chiu, W. S.; Khiew, P. S.; Radiman, Shahidan; Abdul Hamid, Muhammad Azmi.

Proceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014. ed. / Fauziah Othman; Aamir Hussain Bhat; Sujan Chowdhury; Norani Muti Binti Mohamed; Othman Bin Mamat; Patthi Bin Hussain. American Institute of Physics Inc., 2015. 4919168 (AIP Conference Proceedings; Vol. 1669).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cheah, AJ, Chiu, WS, Khiew, PS, Radiman, S & Abdul Hamid, MA 2015, Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres in F Othman, AH Bhat, S Chowdhury, NMB Mohamed, O Bin Mamat & P Bin Hussain (eds), Proceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014., 4919168, AIP Conference Proceedings, vol. 1669, American Institute of Physics Inc., 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014, Tronoh, Malaysia, 10/12/14. https://doi.org/10.1063/1.4919168
Cheah AJ, Chiu WS, Khiew PS, Radiman S, Abdul Hamid MA. Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres In Othman F, Bhat AH, Chowdhury S, Mohamed NMB, Bin Mamat O, Bin Hussain P, editors, Proceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014. American Institute of Physics Inc. 2015. 4919168. (AIP Conference Proceedings). https://doi.org/10.1063/1.4919168
Cheah, A. J. ; Chiu, W. S. ; Khiew, P. S. ; Radiman, Shahidan ; Abdul Hamid, Muhammad Azmi. / Synthesis and characterization of visible-active molybdenum disulfide (2H-MoS 2 ) nanospheres Proceedings of the 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014. editor / Fauziah Othman ; Aamir Hussain Bhat ; Sujan Chowdhury ; Norani Muti Binti Mohamed ; Othman Bin Mamat ; Patthi Bin Hussain. American Institute of Physics Inc., 2015. (AIP Conference Proceedings).
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