TITLE

Influences of oligomer length on carrier-transport properties of oligofluorenes

AUTHOR(S)
Chung-Chih Wu; Tsung-Li Liu; Yu-Ting Lin; Wen-Yi Hung; Tung-Huei Ke; Ken-Tsung Wong; Teng-Chih Chao
PUB. DATE
August 2004
SOURCE
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1172
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, carrier-transport properties of a homologous series of oligofluorenes with C9 diaryl substitution have been examined. These substituted oligofluorenes possess stable amorphous states, ambipolar carrier-transport properties, and processability to thin films for a range of oligomer lengths, rendering feasible investigating dependence of carrier transport on oligomer length in disordered systems. It is found that carrier mobilities of these oligofluorenes show a clear decreasing trend with the oligomer length. Such findings are in contrast with previous observations for crystalline oligomers and impose certain implications in carrier transport of conjugated polymers and oligomers.
ACCESSION #
14085038

 

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