Abstract
High‐quality films of Sn‐doped In2O3 (ITO) have been prepared by ion‐beam sputtering at deposition temperatures below 100 °C. As in the case of rf‐sputtered films, the electrical and optical properties of these films depend strongly on the O2 partial pressure during deposition. As‐deposited films with low electrical resistivity (∼5.5×10−4 Ω cm), high visible transmission (≳80%), and high infrared reflectivity at 10 μm (∼84%) have been obtained at O2 pressures of (2–3) ×10−5 Torr by deposition on both glass and Mylar substrates.