A system for supplying constant electrical power for postprocessing tin-doped indium oxide films.
Annealing tin doped indium oxide (ITO) thin films by self-heating shows potential for reducing the crystallization temperature required to optimize the optical and electrical properties of the films. It also shows promise as a cost effective method of studying the heat treatment process in situ. A computer based solution was developed to allow for a precise control over the annealing process. To anneal at a fixed temperature, a feedback loop senses changes in the resistance of the sample and adjusts the current across the load accordingly to ensure constant delivery of power to an ITO film.
Bertinshaw
J
J
Department of Physics and Advanced Materials, University of Technology, Sydney, PO Box 123, Broadway, New South Wales, Australia.
Kirkup
L
L
Phillips
M
M
Placido
F
F