NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (3), P. 506–508
Effect of substrate temperature on microstructural, vibrational and electrical properties of ZnO nanostructured thin films
A. K. Prasad – Nanomaterials and Sensors Section, Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India; akp@igcar.gov.in
S. Dhara – Nanomaterials and Sensors Section, Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India
ZnO nanostructured thin films are synthesized by a simple spray pyrolysis technique using zinc acetyl acetonate precursor on Si substrates. The morphology control is achieved by varying the substrate temperature during deposition between 350 and 450 °C. The microstructural changes accompanying the changes in growth conditions are observed under the transmission electron microscopy. The vibrational properties of these films are studied using Raman spectroscopy and the differences in crystallinity are explained. The electrical properties are determined from I–V measurements.
Keywords: spray pyrolysis, ZnO nanostructured thin films, substrate effect, Raman.
PACS 81.07.-b, 81.15.Rs
DOI 10.17586/2220-8054-2016-7-3-506-508
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