Exploratory Development of Transparent Conductor Materials
Abstract
The development of electrically conductive cadmium stannate coatings with high visible transparency and high infrared reflectivity has been pursued. Efforts concentrated on the investigation of different deposition technologies, film doping, coating of various substrate materials, and film testing. One of the major applications of this research is to develop coatings for solar cells. Chemical spray deposition and vacuum evaporation of cadmium stannate films has been evaluated and compared to radio frequency sputtering. Doping experiments showed that interstitial cadmium and oxygen vacancies are effective dopants for maximum electrical conductivities. Indium and tantalum doping increase the infrared reflectivity to 90% beyond two micron. Substrate materials investigated included silica, sapphire, soda-lime glass, Chemcor glass, alumina-silica glass, stretched acrylic, and polycarbonate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1975
- Accession Number
- ADA008783
Entities
People
- G. Haacke