Preparation and characterization of a semiconducting oxide glass thick film by quick queching

Abstract

We have thoroughly investigated the current status of semiconducting oxide glasses used in technological and biomedical applications. Conductivity of the transition metal oxide glasses appears due to Mott’s polaron hopping conducting mechanism. But most bioactive glasses are non transition metal oxide glass and insulators. In this project we have selected an interesting composite glass viz. V2O5-HAP [Ca10(PO4) (HO)2] which is found to be both semiconducting and bioconducting (bioactive).To improve conductivity and hence bioconductivity, we have also added Ag (remained in the glass as nanoparticles). We have characterized the samples from the XRD, FTIR and DTA studies. We have also measured the frequency dependent electrical conductivity and dielectric constant of these glasses. These glasses may find its applications in electronic devices (as a semiconductor) and in water purification and in biomedical application (as a bio conducting material).