Synthesis of dumbbell shaped ZnO crystals using one-pot hydrothermal method and their characterisations

P. Ramu, P. M. Anbarasan, R. Ramesh, S. Aravindan, S. Ponnusamy, C. Muthamizhchelvan, Zahira Yaakob

Research output: Contribution to journalArticle

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Abstract

A highly monodispersed dumbbell like ZnO mesostructure has been synthesized by a one pot surfactant assisted hydrothermal method using zinc acetate dihydrate as a precursor and dodecylamine as a surfactant. The crystalline, structural, morphology and optical properties of synthesized ZnO mesostructure were observed using powder X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and transmission electron microscopy (TEM) and their optical properties characterized using UV-visible (UV-vis) and photoluminescence spectroscopy. XRD results revealed that the prepared ZnO sample is highly crystalline having wurtzite crystal structure. The dumbbell like morphological features of ZnO structure is observed from SEM micrographs and TEM measurements. The bandgap energy of ZnO mesostructure was calculated as 3.50 eV using optical absorbance spectrum. Photoluminescence spectrum of prepared ZnO crystals showed the emissions peak in UV region at 395 nm attributed to near-band-edge emission of recombined holes with an energy state of a specific defect.

Original languageEnglish
Pages (from-to)230-233
Number of pages4
JournalMaterials Letters
Volume122
DOIs
Publication statusPublished - 1 May 2014

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Surface-Active Agents
Surface active agents
Optical properties
Zinc Acetate
Crystalline materials
Transmission electron microscopy
Crystals
Scanning electron microscopy
Photoluminescence spectroscopy
synthesis
Ultraviolet spectroscopy
surfactants
X ray powder diffraction
Electron energy levels
crystals
photoluminescence
optical properties
Photoluminescence
transmission electron microscopy
scanning electron microscopy

Keywords

  • Hydrothermal synthesis
  • Nanocrystalline materials
  • Optical materials and properties
  • Semiconductors
  • ZnO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Synthesis of dumbbell shaped ZnO crystals using one-pot hydrothermal method and their characterisations. / Ramu, P.; Anbarasan, P. M.; Ramesh, R.; Aravindan, S.; Ponnusamy, S.; Muthamizhchelvan, C.; Yaakob, Zahira.

In: Materials Letters, Vol. 122, 01.05.2014, p. 230-233.

Research output: Contribution to journalArticle

Ramu, P, Anbarasan, PM, Ramesh, R, Aravindan, S, Ponnusamy, S, Muthamizhchelvan, C & Yaakob, Z 2014, 'Synthesis of dumbbell shaped ZnO crystals using one-pot hydrothermal method and their characterisations', Materials Letters, vol. 122, pp. 230-233. https://doi.org/10.1016/j.matlet.2014.02.021
Ramu P, Anbarasan PM, Ramesh R, Aravindan S, Ponnusamy S, Muthamizhchelvan C et al. Synthesis of dumbbell shaped ZnO crystals using one-pot hydrothermal method and their characterisations. Materials Letters. 2014 May 1;122:230-233. https://doi.org/10.1016/j.matlet.2014.02.021
Ramu, P. ; Anbarasan, P. M. ; Ramesh, R. ; Aravindan, S. ; Ponnusamy, S. ; Muthamizhchelvan, C. ; Yaakob, Zahira. / Synthesis of dumbbell shaped ZnO crystals using one-pot hydrothermal method and their characterisations. In: Materials Letters. 2014 ; Vol. 122. pp. 230-233.
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