Electrical Conductivity of an Individual Polyaniline Nanotube Synthesized by a Self-Assembly Method

✍ Scribed by Yunze Long; Lijuan Zhang; Yongjun Ma; Zhaojia Chen; Nanlin Wang; Ze Zhang; Meixiang Wan

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 198 KB
• Volume: 24
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200300039

✦ Synopsis

Abstract

Camphor sulfonic acid (CSA) doped polyaniline (PANI) nanotubes (175 nm in outer diameter and 120 nm in inner diameter) were synthesized successfully by a self‐assembly method. It is found that the room‐temperature conductivity of an individual PANI nanotube is 30.5 S · cm^−1^; in particular, the intrinsic resistance of an individual nanotube (30 kΩ) is much smaller than the contact resistance of crossed nanotubes (500 kΩ).

A SEM image of two crossed PANI‐CSA nanotubes and the attached Pt electrodes.

magnified imageA SEM image of two crossed PANI‐CSA nanotubes and the attached Pt electrodes.