Hole formation and transfer in poly[9,9-di(ethylhexyl)fluorene] and an amine en...

• Author(s): Burrows, H. D. ; Seixas de Melo, J. ; Forster, M. ; Güntner, R. ; Scherf, U. ; Monkman, A. P. ; Navaratnam, S.
• Date: 2004
• Persistent ID: http://hdl.handle.net/10316/5147
• Origin: Estudo Geral - Universidade de Coimbra
• Document Type: Article
• Language: English

Description

Pulse radiolysis has been used to study the positively charged state of isolated chains of poly[9,9-di(ethylhexyl)fluorene] in chloroform solution. This is found to have an absorption maximum at 560 nm and a weaker band around 420 nm. Intermolecular electron transfer is observed from the aromatic amine tri(p-tolylamine) to this species. With the corresponding polyfluorene derivative end-capped by an arylamine, intramolecular transfer of electrons from the triphenylamine end-cap to the positively charged polyfluorene chain is found on timescales faster than the detection time of the system (ca. 500 ns). http://www.sciencedirect.com/science/article/B6TFN-4BFVRCF-5/1/96f5575d22e4c0ef6aa08c7e4cfe88a2