Author:
Medina G.,Stampe P.A.,Kennedy R.J.,Reeves R.J.,Dang G.T.,Hyland A.,Allen M.W.,Wahila M.J.,Piper L.F.J.,Durbin S. M.
Abstract
ABSTRACTWe describe the characteristics of a series of thin film tin oxide films grown by plasma-assisted molecular beam epitaxy on r-plane sapphire substrates over a range of flux and substrate temperature conditions. A mixture of both SnO2 and SnO are detected in several films, with the amount depending on growth conditions, most particularly the substrate temperature. Electrical measurements were not possible on all samples due to roughness related issues with contacting, but at least one film exhibited p-type characteristics depending on measurement conditions, and one sample exhibited significant persistent photoconductivity upon ultraviolet excitation in a metal-semiconductor-metal device structure.
Publisher
Springer Science and Business Media LLC