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

M. James Harding; Robert C. Maher; Lesley F. Cohen; Alasdair J. Campbell

doi:10.1117/12.681024

5 December 2006 Tuning hole transport in a highly dispersed blend of chemically similar polyfluorene copolymers

M. James Harding, Robert C. Maher, Lesley F. Cohen, Alasdair J. Campbell

Proceedings Volume 6333, Organic Light Emitting Materials and Devices X; 633314 (2006) https://doi.org/10.1117/12.681024
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

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.

Citation Download Citation

M. James Harding, Robert C. Maher, Lesley F. Cohen, and Alasdair J. Campbell "Tuning hole transport in a highly dispersed blend of chemically similar polyfluorene copolymers", Proc. SPIE 6333, Organic Light Emitting Materials and Devices X, 633314 (5 December 2006); https://doi.org/10.1117/12.681024

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