ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Addition of C60 moiety, a powerful electron acceptor to poly(N-vinylcarbazole) by chemical reaction results in the marked enhancement in photoconductivity relative to pure PVK and C60 /PVK mixtures (C60-doped PVK). The photoinduced discharge rates for pure PVK, C60-chemically modified PVK(C60-PVK copolymer) and C60-doped PVK under the same experimental conditions are found in the following order: C60-PVK copolymer〉C60-doped PVK〉pure PVK. The photoconductive performance in C60-PVK copolymer is closely related to fullerene level. The C60-PVK copolymer, which has a visibly earthy yellow cast when compared with the unreacted polymer, has a new structure in the UV-Vis absorption spectrum with the active range extending from about 280 to 870 nm. A qualitative comparison of the submicro-morphological structures for PVK, C60, C60-PVK and C60-doped PVK is given.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00294907
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