Doping of oligo(phenyl acetylene) with iodine vapour

✍ Scribed by Bakker, R. ;Weijers, P. ;van der Werf, C. H. M. ;Rath, J. K. ;Schropp, R. E. I.

• Book ID: 105365722
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 332 KB
• Volume: 207
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200982840

✦ Synopsis

Abstract

The doping with I~2~‐vapour and dopant effusion of thin films of conjugated oligomers are reported in this work. The layers have been created solvent‐free, by initiated chemical vapour deposition (iCVD). FTIR spectra show an interaction of the dopant with the phenyl ring of the oligomer. Reflectance/transmittance measurements showed a saturation of the dopant in the 400 nm thick layers after 40 min. The films change from transparent to brown‐green in the doping process and show a drastic increase in conductivity. The material is quite easily processable and can be grown at an adequate rate (∼3.5 nm/min) for thin film device applications.