CVD grown doped and Co-doped SnO2 nanowires and its optical and electrical studies

Abstract

In this study we report the successful synthesis of doped and co-doped SnO2 nanowire using facile Chemical Vapor deposition (CVD) technique. In this studies, the role of Pr as a codopant in Ba doped SnO2 nanowires has been investigated for optical, morphological and RT transport studies. Pr codoping significantly tunes the morphology, band gap and electrical properties of SnO2 nanowires. GAXRD, FESEM, EDAX, UV–Vis and XPS studies have been carried out to establish the effect of Pr co-doping in SnO2 nanowires. With Pr co-doping, we notice a decrease in band gap from visible transparent range (3.6 eV) to blue emission region (2.1 eV) whereas its mobilities decrease to 28 cm2/V-s from 85 cm2/V-s Through this studies, we have been able to establish the well known trade-off situation between optical and electrical parameters in TCO materials such as SnO2.