Pulsed light sintering characteristics of inkjet-printed nanosilver films on a polymer substrate
- Pulsed light sintering characteristics of inkjet-printed nanosilver films on a polymer substrate
- 이동준; 박성현; 장 신; 김학성; 오제훈; 송용원
- pulsed light sintering; injet printing; nanosilver ink; flexible electronics
- Issue Date
- Journal of micromechanics and microengineering
- VOL 21, NO 12, 125023-1-125023-7
- In this work, the microstructures of inkjet-printed nanosilver films sintered by intense pulsed
light (IPL) were systematically analyzed and correlated with the electrical properties.
Nanosilver films with various dimensions were inkjet-printed and sintered at different light
intensities to investigate the effects of the film dimension and light intensity on the sintering
characteristics. For comparison purposes, the same inkjet-printed films were also thermally
sintered at 210 ℃ for 1 h. Consecutive light pulses from a xenon lamp induced film swelling
and the corresponding hollow microstructures of the inkjet nanosilver films. The resistance of
IPL-sintered films was inversely proportional to the light intensity, and the resultant
conductivity comparable to the thermally sintered one was achieved within just a few tens of
ms, without damaging a polymer substrate. While all the thermally sintered patterns
experienced shrinkage during the sintering process, the IPL-sintered ones could keep their
initial dimension at a certain light intensity.
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