Antimony doping of tin oxide coatings prepared by the oxidative-soak-coating method

摘要

Coatings based on SnO_2 are industrially important materials that are used for electrodes of solar cells, liquid crystal displays, gas sensors, or protective coatings on glassware. Numerous methods for the deposition of electrically conductive SnO_2 coatings have been reported, such as sputtering, MOCVD, spray pyrolysis, or sol-gel methods. Recently, a number of methods for direct deposition of SnO_2-based coatings from aqueous solutions have been reported [1-6]. These methods are advantageous over conventional film deposition techniques because they may enable us to deposit coatings on substrates with large surface area or low thermal durability. Another advantage of the direct deposition methods is that they are capable of forming coatings on substrates with complicated morphology, such as fine powders, fine fibers, or inner walls of porous bodies. For example, fine inorganic powders coated with electrically conductive materials are important as fillers of polymers to fabricate non-electrostatic-charging polymers. The direct deposition techniques should make it easy to fabricate them.