Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 49, Pages 27215-27222Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b08171
Keywords
Transparent conducting electrodes; crackle template; Ag wire network; roll coating; spray coating; oxidation resistant
Funding
- DST, India
- DST-INSPIRE
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Roll and spray coating methods have been employed for the fabrication of highly oxidation resistant transparent and conducting electrodes (TCEs) by a simple solution process using crackle lithography technique. We have spray-coated a crackle paint-based precursor to produce highly interconnected crackle network on PET roll mounted on a roll coater with web speed of 0.6 m/min. Ag TCE with a transmittance of 78% and sheet resistance of similar to 20 Omega/square was derived by spraying Ag precursor ink over the crackle template followed by lift-off and annealing under ambient conditions. The Ag wire mesh was stable toward bending and sonication tests but prone to oxidation in air. When electrolessly coated with Pd, its robustness toward harsh oxidation conditions was enhanced. A low-cost transparent electrode has also been realized by using only small amounts of Ag as seed layer and growing Cu wire mesh by electroless method. Thus, made Ag/Cu meshes are found to be highly stable for more than a year even under ambient atmosphere.
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