Title
Quantitative analysis of the guest-concentration dependence of the mobility in a disordered fluorene-arylamine host-guest system in the guest-to-guest regime
Author
Nicolai, H.T.
Hof, A.J.
Lu, M.
Blom, P.W.M.
de Vries, R.J.
Coehoorn, R.
Publication year
2011
Abstract
The charge transport in a polyspirobifluorene derivative with copolymerized N,N,N',N'-tetraaryldiamino biphenyl (TAD) hole transport units is investigated as a function of the TAD content. For TAD concentrations larger than 5, guest-to-guest transport is observed. It is demonstrated that in this regime the charge carrier density dependent mobility can be described consistently with the extended Gaussian disorder model, with a density of hopping sites which is proportional to the TAD concentration and comparable to the molecular density. © 2011 American Institute of Physics.
Subject
Mechatronics, Mechanics & Materials
HOL - Holst
TS - Technical Sciences
Physics
Industrial Innovation
A-density
Gaussian disorder models
Hole transports
Hopping sites
Host-guest system
Molecular density
Polyspirobifluorene
Carrier concentration
Fluorine containing polymers
Carrier mobility
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TNO identifier
445729
ISSN
0003-6951
Source
Applied Physics Letters, 99 (20)
Article number
No.: 203303
Document type
article