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A series of phenylene vinylene oligomers containing from 1 to 6 phenylene rings was studied by absorption, Raman and photoluminescence spectroscopies. The results are discussed by examining the influence of chain length on the spectra and compared to those of PPV films obtained from the Wessling precursor route.
The electrical properties of 4,4′-bis(4-Dimethyl Amino Styryl) benzene (DMASB) were investigated by studying the current-voltage temperature characteristics of metal-DMASB-metal structures. Rectifying behavior of the devices occurred at an applied field higher than 10 7 Vm −1 which depends on the nature of the electrode metal. At high temperature, a thermally activated process was...
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