期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 6, 期 24, 页码 6406-6415出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc01849a
关键词
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资金
- National Key R&D Program of China [2017YFB0305700]
- NSAF from the National Natural Science Foundation of China
- China Academy of Engineering Physics [U1630137]
- National Natural Science Foundation of China [51701204]
Conductive copper patterns are usually heated in vacuum, inert gas or reducing atmosphere to avoid the oxidation of copper for printed electronics applications. Here, we report a formulation of metal organic decomposition copper ink and obtained conductive copper films by heating the ink in air at low temperatures using diamine as the complexing agent without other additions. The complexing of diamine with the copper formate tetrahydrate precursor lowers the thermal decomposition temperature of the ink, promotes the densification of the film and prevents the oxidation of copper by consuming absorbed oxygen during the heating process. The copper films using 1,2-diaminopropane as the complexing agent showed a low resistivity of 1.8 x 10(-5) cm after heating at 180 degrees C for 1 min in air. The pen-writing copper patterns showed a metal copper luster and great adhesion on a PI substrate.
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