A roll-to-roll welding process for planarized silver nanowire electrodes

作者：Lee Seong Jun; Kim Young Hoon; Kim Jung Kyu; Baik Hionsuck; Park Jae Hoon; Lee Jaeki; Nam Jaewook; Park Jong Hyeok; Lee Tae Woo; Yi Gi Ra^*; Cho Jeong Ho

来源：Nanoscale, 2014, 6(20): 11828-11834.

DOI：10.1039/c4nr03771e

We demonstrate continuous roll-to-roll production of highly conductive silver network films on a plastic substrate via mechanical and chemical welding processes. This process included three essential steps: (i) solvent spraying, (ii) roll compression, and (iii) salt treatment and washing. The sheet resistance of the resulting AgNW film was 5 Omega sq(-1) at 92% transmittance, which was the lowest sheet resistance and the highest transparency among the values reported previously for solution-processed AgNW electrodes. Moreover, the strong contacts among the AgNWs dramatically enhanced the mechanical stability of the network film. The resulting AgNW film was successfully applied to various organic electronic devices, such as organic field-effect transistors (OFETs), organic light-emitting diodes (OLEDs), and organic solar cells (OSCs).

• 出版日期2014