thin films, vacuum deposition, photoresistive materials, cadmium sulfide, lead sulfide
Abstract
This paper aims to obtain thin photoresistive films of lead sulfide doped with cadmium using magnetron sputtering and electron beam evaporation in a vacuum. It describes the methods of solid-phase synthesis of lead-cadmium sulfide solid solutions of the required composition and sintering of a ceramic target for DC magnetron sputtering. The composition of the resulting targets corresponds to a homogeneous solid solution based on galena. Pb0,96Cd0,04S films were deposited by spluttering a ceramic target with magnetron DC spraying onto sitall and silicon substrates. The phase composition of the deposited films corresponds to that of the sputtered target and the resulting films exhibit a photoresistive effect. The authors determined the dark-light resistance ratio and time constants of the obtained photoresistive films. Pb0,96Cd0,04S films on silicon substrates exhibit higher sensitivity compared to those deposited on sitall. Pb0,88Cd0,12S and CDs were deposited by electron beam evaporation from a graphite crucible. Pb0,88Cd0,12S films deposited using the electron beam method showed no photoresistive effect. The best dark-light resistance ratio and a time constant of 25 microseconds were demonstrated by Pb0,96Cd0,04S films on a silicon substrate.
Author Biographies
Boris Grigor'evich Polevoy, South Ural State University, Chelyabinsk
Cand. Sc. (Physics and Mathematics), Associate Professor, Department of Physics of Nanoscale Systems
Danil Il'ich Nenarokomov, South Ural State University, Chelyabinsk
Engineer, Department of Physics of Nanoscale Systems
Dmitriy Evgen'evich Zhivulin, South Ural State University, Chelyabinsk
Cand. Sc. (Chemical), Researcher at the RML of Electromechanical, Electronic and Electrochemical Systems, Junior Researcher at the Crystal Growth Laboratory, Associate Professor of the Department of Materials Science and Physics-Chemistry of Materials
Dmitriy Anatol'evich Zherebtsov, South Ural State University, Chelyabinsk
Dr. Sc. (Chemical), Senior Researcher at the Department of Materials Science and Physics-Chemistry of Materials, Senior Researcher at the Laboratory of Environmental Problems of Post-Industrial Agglomeration
Alexander Gennadevich Vorontsov, South Ural State University, Chelyabinsk
Dr. Sc. (Physics and Mathematics), Professor, Head of the Nanoscale Systems Physics Department
