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Title: Role of sonic energy on growth morphology and optical properties of ZnO:S nanostructures

ZnO nanopowders doped with sulphur were prepared by sonochemical method. The input power of ultrasound was varied as 40%, 50% and 60% of the maximum power (375 W) in both continuous and pulsed mode. XRD results show the average size of the nanoparticles is the least for those prepared with 50% input power as well as the micro-strain. FESEM studies showed the formation of nanorods clubbed together to form flower like structure for these samples. In rest of the cases, no definite morphology was obtained. High resolution transmission electron microscopy (HRTEM) reveals the formation of nanorods oriented along c-axis for those samples prepared with 50% input power. No cavitation at 40% and excessive dissolution at 60% may lead to this type of morphology. Absorption studies showed high absorbance for sulphur doped samples but this was highest for the samples prepared with 60% input power.
Authors:
;  [1] ;  [2]
  1. School of Physics, Sambalpur University, Jyoti Vihar, Burla-768019, Odisha (India)
  2. C.V. Raman College of Engineering, Bhubaneswar-752054, Odisha (India)
Publication Date:
OSTI Identifier:
22269437
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; DISSOLUTION; DOPED MATERIALS; NANOSTRUCTURES; OPTICAL PROPERTIES; PARTICLES; POWDERS; PULSES; SULFUR; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; ZINC OXIDES