利用旋涂法和喷墨印刷法在室温下沉积银导电层

Room Temperature Preparation of Conductive Silver Features Using Spin-Coating and Inkjet Printing

以具有低玻璃化温度的聚合物,如PET为基材,采用喷墨印刷法及旋涂法沉积含银金属有机油墨,经UV光固化及对苯二酚溶液处理生成银导电层,此过程在室温下进行,用时不到1min。结果表明银导电层的电导率是纯银的10%。本文也测试了沉积银导电层后PET膜的机械稳定性,发现电阻随着应变的增加呈线性增长,经过12000次变形试验后其电阻不再发生明显变化。

Inkjet printing and spin-coating have been used to prepare patterns using a silver-containing metalloorganic decomposition ink.The patterned ink was reduced to silver by exposure to UV light and subsequent treatment with hydroquinone solution.This process,which took less than a minute,was performed at room temperature,which allowed low glass transition temperature polymeric substrates,such as PET,to be used.The conductivity of the silver patterns was found to be 10% that of bulk silver.The mechanical stability was also measured,with a linear increase in resistance seen for increasing strain, and no significant change in resistance seen after 12000 cyclic deformations.