1. Transparent ITO-Mn:ITO Thin-Film Thermocouples
- Author
-
R.B Rakhi, S R Sarath Kumar, and Subbiah Kasiviswanathan
- Subjects
Materials science ,business.industry ,Doping ,Thin film thermocouples ,Optical transparency ,chemistry.chemical_element ,Manganese ,Indium tin oxide ,chemistry ,Thermocouple ,Electrical resistivity and conductivity ,Thermoelectric effect ,Electronic engineering ,Optoelectronics ,Electrical and Electronic Engineering ,business ,Instrumentation - Abstract
Transparent thin-film thermocouples have been fabricated with indium tin oxide (ITO) and manganese doped indium tin oxide (Mn:ITO) as the positive and negative legs, respectively. Optical transparency of the thermocouples was above 85% in the visible region of the spectrum. Presence of Mn has been found to enhance the thermoelectric response, without significantly increasing the resistivity. Seebeck voltages of ~ 20 mV and ~ 31 mV have been obtained at 625 K, respectively, for the thermocouples with Mn:ITO legs having 1.6 at.% and 4.3 at.% Mn. The response has been found to be reproducible with an error of plusmn2%.
- Published
- 2009