초록 |
In this study, we report a unique method to fabricate highly transparent and electrically conductive silver networks embedded in flexible substrates. A brittle silica layer was first formed on elastic substrates by UV-ozone treatment. By bending the substrates on cylindrical supporters having various diameters from about 4 mm to 20 mm, well-controlled cracks were produced on the brittle layers. Then conducting ink consisted of suspension of silver nanoparticles of which diameter was around 50 nm was placed on the substrates and subsequently back filled into the cracks by sliding a slide glass. Silver ink was solidified inside the cracks by thermal treatment. As a result, silver networks embedded into elastomeric substrates were formed and characterized by using AFM, SEM, and UV-spectroscopy. |