Regulable switching from p- to n-type behavior of ordered nanoporous Pt-SnO₂ thin films with enhanced room temperature toluene sensing performance

Abstract

In this work, a nanoporous SnO₂ sensing film is fabricated <italic>in situ</italic> on a sensing device using a block polymer template and is applied as a chemiresistive gas sensor. The ordered film is capable of detecting 10 ppm toluene at room temperature and shows good stability.