Journal article
Bipolar redox behaviour, field-effect mobility and transistor switching of the low-molecular azo glass AZOPD



Publication Details
Authors:
Arlt, M.; Scheffler, A.; Suske, I.; Eschner, M.; Saragi, T.; Salbeck, J.; Fuhrmann-Lieker, T.
Publication year:
2010
Journal:
Physical Chemistry Chemical Physics
Pages range:
13828-13834
Volume number:
12
ISSN:
1463-9076
eISSN:
1463-9084

Abstract
We present electrochemical and spectroelectrochemical data for the bipolar azo compound N,N'-diphenyl-N,N'-bis[4-(phenylazo)phenyl]-4,4'diaminobiphenyl (AZOPD) demonstrating reversible bipolar redox behaviour with a bandgap of 2.1 eV. The reduced species formed upon two-electron transfer can be described as bis(radical anion) as was confirmed by comparison witha reference compound with only one azo chromophore. Hole and electron transport behaviour in amorphous films was demonstrated by the fabrication of organic field-effect transistors using gold and magnesium contacts, respectively. The transistors are sensitive to light due to E-Z photoisomerization.


Research Areas


Last updated on 2019-01-11 at 16:05