Direct writing of silver conductive patterns: Improvement of film morphology and conductance by controlling solvent compositions
- 25 December 2006
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (26), 264101
- https://doi.org/10.1063/1.2424671
Abstract
The authors have investigated the influence of conductive ink compositions on the quality of ink-jet printed patterns. Controlling the solvent compositions plays an important role of reducing the so-called coffee ring effect. The use of a higher boiling point solvent with lower surface tension such as ethylene glycol enables the formation of a uniform deposit of silvernanoparticles due to surface tension gradient-induced inward Marangoni flow, which can compensate outward convective flow. It is demonstrated that the ink-jet printed film quality is directly related to the resistance difference in the conductive patterns.Keywords
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