CAJ | 학술논문

本文利用液桥转印技术将填充于聚二甲基硅氧烷（ PDMS）模板沟槽内的纳米银墨水经烧结固化后转印到玻璃基底表面形成微结构图形。研究了金属微结构在转印过程中的图形断裂和线条展宽等缺陷产生的原因。实验结果表明，液桥毛细作用力的存在可以大幅提高图形转印成功率；降低烧结温度和缩短烧结时间有利于提高银线微结构的连续性，而升高烧结温度和增加烧结时间有利于提高纳米银墨水的固化程度，从而抑制线条展宽进而提高透射率。综合考虑这两方面因素，优化了工艺参数，改善了银线微结构的断裂情况，并且使其具有较高的转印精度和透射率。
본문이용액교전인기술장전충우취이갑기규양완（ PDMS）모판구조내적납미은묵수경소결고화후전인도파리기저표면형성미결구도형。연구료금속미결구재전인과정중적도형단렬화선조전관등결함산생적원인。실험결과표명，액교모세작용력적존재가이대폭제고도형전인성공솔；강저소결온도화축단소결시간유리우제고은선미결구적련속성，이승고소결온도화증가소결시간유리우제고납미은묵수적고화정도，종이억제선조전관진이제고투사솔。종합고필저량방면인소，우화료공예삼수，개선료은선미결구적단렬정황，병차사기구유교고적전인정도화투사솔。
A novel technique was developed to realize the transfer process that the solidified silver nanoparticle ink pattern on polydimethylsiloxane (PDMS) mould to the glass substrate , based on liquid-bridge-mediated transfer moulding . The causes of defects , such as the fracture of silver lines and surface diffusion were investigated . We found that the existence of capillary force during the process could achieve large area graphical metal structure with few defects. The experimental results show that lower sintering temperature and shorter sintering time can improve the continuity of silver lines , howerer , higher sintering emperature and longer sintering time could help to enhance the curing degree of silver nanoparticle ink so as to increase its transmittance . Using the optimized process parameters which balanced these two factors, silver lines were successfully transferred on the substrate with large area , better continuity and higher transmittance .