Stochastic model of photodynamics in multichromophoric conjugated polymers

被引:12
作者
Barzykin, AV [1 ]
Tachiya, M [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, AIST, Tsukuba, Ibaraki 3058565, Japan
关键词
D O I
10.1021/jp056088q
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A stochastic model of triplet exciton dynamics in multichromophoric conjugated polymers is presented and analyzed in detail, with a focus on the single molecule spectroscopy observables. The model deals with the evolution of a discrete statistical distribution of triplets in isolated polymer molecules. This approach should provide more accurate quantitative information on the dynamic processes involved, as compared to the previously used two-state model which assumes that a conjugated polymer cannot contain more than one triplet. In particular, it allows for determination of the triplet-triplet annihilation rate.
引用
收藏
页码:7068 / 7072
页数:5
相关论文
共 23 条
[11]   Fluorescence blinking in MEH-PPV single molecules at low temperature [J].
Mirzov, O ;
Cichos, F ;
von Borczyskowski, C ;
Scheblykin, I .
JOURNAL OF LUMINESCENCE, 2005, 112 (1-4) :353-356
[12]   Room-temperature fluctuations in the fluorescence of a single polymer molecule [J].
Osad'ko, IS .
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2003, 96 (04) :617-628
[13]   KINETICS OF EMULSION POLYMERIZATION [J].
OTOOLE, JT .
JOURNAL OF APPLIED POLYMER SCIENCE, 1965, 9 (04) :1291-&
[14]   DYNAMICS AND STATISTICS OF TRIPLET-TRIPLET ANNIHILATION IN MICELLAR ASSEMBLIES [J].
ROTHENBERGER, G ;
INFELTA, PP ;
GRATZEL, M .
JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (13) :1850-1856
[15]   Host matrix dependence on the photophysical properties of individual conjugated polymer chains [J].
Sartori, SS ;
De Feyter, S ;
Hofkens, J ;
Van der Auweraer, M ;
De Schryver, F ;
Brunner, K ;
Hofstraat, JW .
MACROMOLECULES, 2003, 36 (02) :500-507
[16]   Photoluminescence intensity fluctuations and electric-field-induced photoluminescence quenching in individual nanoclusters of poly(phenylenevinylene) [J].
Scheblykin, I ;
Zoriniants, G ;
Hofkens, J ;
De Feyter, S ;
Van der Auweraer, M ;
De Schryver, FC .
CHEMPHYSCHEM, 2003, 4 (03) :260-267
[17]   Excitonic singlet-triplet ratios in molecular and polymeric organic materials [J].
Segal, M ;
Baldo, MA ;
Holmes, RJ ;
Forrest, SR ;
Soos, ZG .
PHYSICAL REVIEW B, 2003, 68 (07)
[18]   Matrix-induced intensity fluctuations in the fluorescence from single oligo(phenylenevinylene) molecules [J].
Summers, MA ;
Bazan, GC ;
Buratto, SK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (46) :16202-16206
[19]  
Tachiya M., 1987, KINETICS NONHOMOGENE, P575
[20]   Spin-dependent exciton formation in π-conjugated compounds [J].
Wilson, JS ;
Dhoot, AS ;
Seeley, AJAB ;
Khan, MS ;
Köhler, A ;
Friend, RH .
NATURE, 2001, 413 (6858) :828-831