Non-linear effects in the quenching of fluorescent quantum dolts by nitroxyl free radicals

被引：84

作者：

Laferrière, M ^{[1
]}

Galian, RE ^{[1
]}

Maurel, V ^{[1
]}

Scaiano, JC ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada

来源：

CHEMICAL COMMUNICATIONS | 2006年 / 03期

关键词：

D O I：

10.1039/b511515a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Quenching of quantum dot luminescence by nitroxides is extremely non-linear and dependent on nanoparticle size, being most effective for the smaller particles; it is proposed to involve an electron exchange mechanism.

引用

页码：257 / 259

页数：3

共 15 条

[1] Perspectives on the physical chemistry of semiconductor nanocrystals [J].

Alivisatos, AP .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (31) :13226-13239

[2] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[3] FLUORESCENCE QUENCHING OF INDOLE AND MODEL MICELLE SYSTEMS [J].

EFTINK, MR ;

GHIRON, CA .

JOURNAL OF PHYSICAL CHEMISTRY, 1976, 80 (05) :486-493

[4]

Franchi P, 2002, CHEMPHYSCHEM, V3, P789, DOI 10.1002/1439-7641(20020916)3:9<789::AID-CPHC789>3.0.CO

[5]

2-Z

[6] QUENCHING OF AROMATIC TRIPLET-STATES IN SOLUTION BY NITRIC-OXIDE AND OTHER FREE-RADICALS [J].

GIJZEMAN, OL ;

KAUFMAN, F ;

PORTER, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1973, 69 (05) :727-737

[7] Photoactivated luminescent CdSe quantum dots as sensitive cyanide probes in aqueous solutions [J].

Jin, WJ ;

Fernández-Argüelles, MT ;

Costa-Fernández, JM ;

Pereiro, R ;

Sanz-Medel, A .

CHEMICAL COMMUNICATIONS, 2005, (07) :883-885

[8] Electronic energy transfer in CdSe quantum dot solids [J].

Kagan, CR ;

Murray, CB ;

Nirmal, M ;

Bawendi, MG .

PHYSICAL REVIEW LETTERS, 1996, 76 (09) :1517-1520

[9] SIZE-DEPENDENT FLUORESCENCE QUENCHING OF CDS NANOCRYSTALS CAUSED BY TIO2 COLLOIDS AS A POTENTIAL-VARIABLE QUENCHER [J].

MATSUMOTO, H ;

MATSUNAGA, T ;

SAKATA, T ;

MORI, H ;

YONEYAMA, H .

LANGMUIR, 1995, 11 (11) :4283-4287

[10]

NOYES RM, 1961, PROG REACT KINET, V1, P131

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