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Proceedings Paper

Tuning hole transport in a highly dispersed blend of chemically similar polyfluorene copolymers
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Paper Abstract

Here we report results of time-of-flight (ToF) measurements on blends of different ratios of poly(9,9-dioctylfluorene-cobis- N,N'-(4-methoxylphenyl)-bis-N,N'-phenyl-1,4-phenylenediamine) (PFMO) and the structurally similar poly(9,9- dioctylfluorene-co-N-(4-methoxyphenyl)diphenylamine) (TFMO). It is shown that the hole mobility can be tuned over three orders of magnitude with a mobility minimum at 10% PFMO and 90% TFMO. We also use Raman microscopy to demonstrate that the blends do not phase separate within the one micron resolution of our experiment.

Paper Details

Date Published: 5 December 2006
PDF: 8 pages
Proc. SPIE 6333, Organic Light Emitting Materials and Devices X, 633314 (5 December 2006); doi: 10.1117/12.681024
Show Author Affiliations
M. James Harding, Imperial College London (United Kingdom)
Robert C. Maher, Imperial College London (United Kingdom)
Lesley F. Cohen, Imperial College London (United Kingdom)
Alasdair J. Campbell, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 6333:
Organic Light Emitting Materials and Devices X
Zakya H. Kafafi; Franky So, Editor(s)

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