Charge-Carrier Generation and Migration in a Polydiacetylene Compound
1995; American Chemical Society; Linguagem: Inglês
10.1021/bk-1994-0579.ch024
ISSN1947-5918
AutoresG.P. van der Laan, Matthijs P. de Haas, John M. Warman, Dago M. de Leeuw, John Tsibouklis,
Tópico(s)Luminescence and Fluorescent Materials
ResumoThe long-lived transient conductivity change resulting from nanosecond pulsed irradiation of (5,7-dodecadiyn-1,12-diol-bis(n-butoxy-carbonylmethylurethane), 4BCMU, has been studied using the time-resolved microwave conductivity (TRMC) technique. The polymerization of the 4BCMU upon irradiation results in an increase of the end-of-pulse conductivity with increasing dose up to approximately 10 kGy. The observed radiation-induced conductivity leads to a lower limit of 5x10-4 m2/Vs for the sum of the charge carrier mobilities. At higher accumulated dose the conductivity decreases continuously up to the maximum total dose given of 1 MGy. These results are explained in terms of long chain length polymerization being counteracted at high accumulated dose by radiation-induced damage.
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