ISSN:
1573-482X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Allyl viologen (AV), chemically known as 1,1′-diallyl-4,4′-bipyridine, was synthesized by cross-coupling reaction between allyl bromide and 4,4′-bipyridine in acetonitrile solvent. Optical properties were studied in the region 200–800 nm. Two types of electronic transition were seen; one under the influence of an electric field and another by thermal excitation, in the blue and green regions, respectively. A cyclic voltammogram, recorded in aqueous KCl solvent systems, shows the existence of two redox centres in the molecular system. Electrical and photoelectrical properties of an Al–AV–ITO sandwich device were analysed. J–V and C–V measurements reveal the formation of a Schottky barrier at the Al–AV interface. Action spectra of the device, absorption spectra of the allyl viologen as well as J–V and C–V characteristics confirm that the allyl viologen behaves as a p-type organic semiconductor. Various electrical and photoelectrical parameters are calculated and discussed in detail.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1018552904208
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