Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry


Luminescent and Gas Sensing Properties of SnO2 Thin Films Grown by Pulsed Laser Deposition

Author(s): M. C. Rao, K. Ravindranadh, T. Satyanarayana, Y. Dasaradhudu, G. Nagarjuna, K. Srinivas and M. S. Shekhawat

SnO2 films have a wide range of applications because of their excellent performance along with high mechanical, chemical and environmental stability and low cost material. SnO2 thin films were prepared by pulsed lased deposition method. SEM, EDS, TEM, PL, Gas sensing and Electrical properties were carried out on to the prepared thin films. SEM images reveal that the sample consists of irregular shaped sphere like structures. EDS pattern showed the elemental compositions of Sn and O. TEM measurements were performed to confirm the nanocrystalline nature of the samples and to study the morphology of the particles. PL studies of SnO2 thin films exhibit blue emission bands. The thermo emf of SnO2 thin films increased with the increasing of temperature. At low temperatures the Seebeck coefficient is observed to be high and the Seebeck coefficient decreases with increasing of temperature