Stability of Doped Transparent Carbon Nanotube Electrodes

✍ Scribed by Roderick Jackson; Benoit Domercq; Rishabh Jain; Bernard Kippelen; Samuel Graham

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 345 KB
• Volume: 18
• Category: Article
• ISSN: 1616-301X
• DOI: 10.1002/adfm.200800324

✦ Synopsis

Abstract

This paper evaluates the effectiveness of p‐doping transparent single‐walled carbon nanotube (SWNT) films via chemical treatment with HNO~3~ and SOCl~2~. Stability of the improvement in electrical conductivity after doping is investigated for different doping treatments as a function of exposure time to air and as a function of temperature. Doped films were found to have a greater than twofold increase in conductivity with sheet resistance values as low as 105 Ω sq^−1^ with an optical transmittance of 80% at 550 nm. However, doping enhancements demonstrated limited stability in air and under thermal loading. The application of a thin capping layer of PEDOT/PSS is shown to stabilize the improvements in conductivity, evidenced by sustained lower sheet resistance in both air and under thermal loading.