Relative Humidity Dependent Resistance Switching of Bi2S3 Nanowires

Abstract

Funding Information: This work was done within Latvian National Research Program IMIS 2 and University of Latvia Base/Performance Funding Projects nos. AAP2016/B043 and ZD2010/AZ19. Publisher Copyright: © 2017 Raimonds Meija et al.Electrical properties of Bi2S3 nanowires grown using a single source precursor in anodic aluminum oxide templates are sensitive to the relative humidity in an inert gas environment. Dynamic sensing dependency is obtained and shows presence of spontaneous resistance switching effect between low and high relative humidity states. Employing the thermionic field emission theory, heights of Schottky barriers are estimated from the current-voltage characteristics and in relation to the humidity response. The change of Schottky barrier height is explained by local changes in physically adsorbed water molecules on the surface of the nanowire.publishersversionPeer reviewe