Sensitization of photosensitivity of photothermoplastic holographic recording media by metal (Zinc, Dysprosium) mono-and diphthalocyanines in the presence of praseodymium sesquioxide

Autor:	L. N. Gumenyuk, M. O. Breusova, Yu. P. Getmanchuk, N. G. Chuprina, A. S. Lobach, N. A. Davidenko, L. I. Kostenko, Valeriy Pavlov, I. P. Kalashnikova, E. V. Mokrinskaya, S. L. Studzinskii, N. G. Spitsyna
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Sesquioxide Intersystem crossing chemistry Photosensitivity Praseodymium Photoconductivity Phthalocyanine Dysprosium chemistry.chemical_element Zinc Physical and Theoretical Chemistry Photochemistry
Zdroj:	High Energy Chemistry. 42:45-50
ISSN:	1608-3148 0018-1439
DOI:	10.1134/s0018143908010098
Popis:	Holographic properties, dark conductivity, and photoconductivity of films based on carbazolyl-containing cooligomer doped with zinc 2,3,9,10,16,17,23,24-octabutylphthalocyanine (PcBuZn), double-decker dysprosium phthalocyanine (Dy(Pc)2), and Pr2O3 particles were studied. The films with PcBuZn are characterized by higher photoconductivity, which is due to photogeneration of long-lived triplet charge pairs. The presence of Dy in the sensitizer molecules or Pr2O3 in the films enhances their photoconductivity, a change that is attributed to an increase in the rate of the singlet-triplet intersystem crossing of the charge pairs.
Databáze:	OpenAIRE
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