期刊
APPLIED PHYSICS LETTERS
卷 99, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3663563
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资金
- European Commission [IST-004607, FP7-213708]
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. VC 2011 American Institute of Physics. [doi:10.1063/1.3663563]
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