期刊
APPLIED SURFACE SCIENCE
卷 261, 期 -, 页码 554-560出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2012.08.054
关键词
Silver citrate; Conductive ink; Inkjet printing; Flexible electronics
类别
资金
- Tianjin Sci-Tech Support Programme [11ZCKFGX20200]
- National Natural Science Foundation of China (NSFC) [50673075]
- Program of Introducing Talents of Discipline to Universities of China [B06006]
Direct synthesis of silver conductive film on PET substrate by inkjet printing silver citrate conductive ink was presented in this paper. This kind of conductive ink contained silver citrate as silver precursor, 1,2-diaminopropane as complex agent dissolving the silver salt and methanol and isopropanol as a media adjusting the viscosity and surface tension. The formation of silver-amine complex reduced the decomposition temperature from 180 degrees C to 135 degrees C, thus the ink could be cured at relatively low temperature. The film reached the lowest resistivity of 17 mu Omega cm after cured at 150 degrees C for 50 min, 3.1 mu Omega cm at 230 degrees C and possessed high reflection and excellent adhesive property. Electrical conductivity, surface morphology and composition were investigated by four-point probe method, scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). It is demonstrated how the cured condition affects the silver film. Moreover, radio-frequency identification (RFID) antenna was fabricated by inkjet printing, which opens up routes for the flexible electronics fabrication. (C) 2012 Elsevier B. V. All rights reserved.
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