PHOTOPHYSICAL PROPERTIES OF CHLOROPHYLL-A LANGMUIR-BLODGETT MULTILAYER FILMS

被引：17

作者：

TKACHENKO, NV

GRANDELL, D

IKONEN, M

JUTILA, A

MORITZ, V

LEMMETYINEN, H

机构：

[1] UNIV HELSINKI,DIV PHYS CHEM,MERITULLINKATU 1C,SF-00170 HELSINKI 17,FINLAND

[2] RUSSIAN ACAD SCI,INST GEN PHYS,MOSCOW 117942,RUSSIA

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1993年 / 58卷 / 02期

关键词：

D O I：

10.1111/j.1751-1097.1993.tb09563.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Multilaver Langmuir-Blodgett films of chlorophyll a and chlorophyll a in L-alpha-phosphatidylcholine dipalmitoyl matrix have been prepared. The films were protected by covering them with eight layers of stearic acid to ensure high film stability during the light illumination. Based on the time-resolved fluorescence measurements a model with two types of chlorophyll arrangement was developed. One arrangement could be attributed to an aggregated state and the other to a homogeneously distributed state. Transient absorption in the wavelength range from 380 and 740 nm and the time range from 0.1 to 100 mus were measured. The chlorcophyll a radicals and the triplet state were observed and their lifetimes estimated.

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页码：284 / 289

页数：6

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