Effect of substrate temperature on microstructural, vibrational and electrical properties of ZnO nanostructured thin films
https://doi.org/10.17586/2220-8054-2016-7-3-506-508
Abstract
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.
Supporting agencies: AKP thanks Dr. Tom Mathews for help with synthesis and Dr. A. K. Tyagi for encouragement
About the Authors
A. K. Prasad
Nanomaterials and Sensors Section, Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research
India
India
Kalpakkam, 603102
S. Dhara
Nanomaterials and Sensors Section, Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research
India
India
Kalpakkam, 603102
References
1. Krunks M., Mellikov E. Zinc oxide thin films by the spray pyrolysis method. Thin Solid Films, 1995, 270 (1–2), P. 33–36.
2. Alver U., Kilinc¸ T., Bacaks´ız E., Nezir S. Temperature dependence of ZnO rods produced by ultrasonic spray pyrolysis method. Materials Chemistry and Physics, 2007, 106, P. 227–230.
3. Dedova T., Krunks M., et al. A novel deposition method to grow ZnO nanorods: Spray pyrolysis. Superlattices and Microstructures, 2007, 42 (1–6), P. 444–450.
4. Mohammad M.T., Hashim A.A., Al-Maamory M.H. Highly conductive and transparent ZnO thin films prepared by spray pyrolysis technique. Materials Chemistry and Physics, 2006,. 99 (2–3), P. 382–387.
5. Vimalkumar T.V., Poornima N., Sudha Kartha C., Vijayakumar K.P. On tuning the orientation of grains of spray pyrolysed ZnO thin films. Applied Surface Science, 2010, 256 (20), P. 6025–6028.
6. Prasad A.K., Shwathy R, et al. Microstructure dependent ammonia sensing properties of nanostuctured zinc oxide thin films using in-house designed gas exposure facility. IEEE Xplore Conference Proceedings of the “International Conference on Nanoscience, Engineering and Technology (ICONSET)”, 2011, Chennai, India, P. 73–77.
7. Yang P.F., Wen H.C., et al. Characteristics of ZnO thin films prepared by radio frequency magnetron sputtering. Microelectronic Reliability, 2008, 48, P. 389–394.
8. Chakraborty S., Dhara S., et al. Resonant exciton-phonon coupling in ZnO nanorods at room temperature. AIP Advances, 2011, 1, 03213.
9. R. Cusco´, E. Alarco´n-Llado´, et al. Temperature dependence of Raman scattering in ZnO. Physical Review B, 2007, 75, 165202.
Review
For citations:
Prasad A.K., Dhara S. Effect of substrate temperature on microstructural, vibrational and electrical properties of ZnO nanostructured thin films. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(3):506-508. https://doi.org/10.17586/2220-8054-2016-7-3-506-508
Views:
3
Email this article 