Effect of Li-doping on the optoelectronic properties and stability of tin(II) oxide (SnO) nanostructures

Abstract

Tin(II) oxide (SnO), as one of the very few p-type semiconducting oxides is becoming a promising key material in different fields of research. However, the oxidation towards the most stable SnO2 commonly hinders its synthesis and applicability. In that sense, insights in the achievement of SnO with controlled dimensions, morphology and doping, as well as in the study of its optoelectronic properties and stability, are required in order to exploit and widen its applicability. In this work, we report on the synthesis of lithium-doped tin(II) oxide (SnO) nanostructures by a hydrolysis process. Li-doped SnO presents similar morphology as undoped SnO, nonetheless Li doping induces changes in the photoluminescence and electrical properties. Theoretical calculations have been also carried out, complementary to the experimental results. Moreover, the stability of this material under temperature and UV and VIS-laser irradiation is also studied, aiming to determine the ranges within this material could be exploited.