Silver nanowires with 40 nm diameter and copper nanowires with 150 nm diameter were synthesized using low-temperature routes, and deposited in combination with ultrathin graphene sheets for use as transparent conductors. A systematic and detailed analysis involving nature of capping agent for the metal nanowires, annealing of deposited films, and pre-treatment of substrates revealed critical conditions necessary for preparing high performance transparent conducting electrodes. The best electrodes show ~90% optical transmissivity and sheet resistance of ~10 Ω/□, already comparable to the best available transparent electrodes. The metal nanowire-graphene composite electrodes are therefore well suited for fabrication of opto-electronic and electronic devices.

Date Published: 7 October 2014
PDF: 6 pages
Proc. SPIE 9177, Thin Films for Solar and Energy Technology VI, 91770I (7 October 2014); doi: 10.1117/12.2062292

Published in SPIE Proceedings Vol. 9177:
Thin Films for Solar and Energy Technology VI
Louay A. Eldada; Michael J. Heben, Editor(s)