Sensitive photodetector based on transparent oxid

Abstract

Recently transparent and conductive transparent metal oxide films are receiving more attention because of their properties such as light-emitting semiconductivity, possessing high value of exciton binding energy, etc. Due to these properties the films have been used in varities of applications such as high temperature thermoelectric device fabrication, active emitter in LED and laser diodes, TFT for real-time sensing of gas molecules, acoustic sensors, etc. Being at the beginning of our investigation, our main task consists of obtaining thin metal oxides films (MexOy) (where Me are Sn or Zn ) undoped and doped with different additives [1-4]. The thin films were deposited on glass and silicon substrates by spray pyrolysis technique. The specific amount of dopant (In, Mo) influences the conductivity, the transparency and the electrical resistivity of the films.