Synthesis and photophysical properties of nanocomposites of aluminum tetrasulfonated phthalocyanine covalently linked to glutathione capped CdTe/CdS/ZnS quantum dots

被引:12
作者
Oluwole, David O. [1 ]
Britton, Jonathan [1 ]
Mashazi, Philani [1 ]
Nyokong, Tebello [1 ]
机构
[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa
基金
新加坡国家研究基金会;
关键词
Triplet quantum yield; Triplet lifetime; Quantum dots; Aluminium tetrasulfonated phthalocyanine; Core/shell-shell; ENERGY-TRANSFER; HIGHLY LUMINESCENT; ELECTRON-TRANSFER; SINGLET OXYGEN; BEHAVIOR; CELLS; WATER; NANOPARTICLES; GENERATION; MODEL;
D O I
10.1016/j.synthmet.2015.04.015
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Aluminum tetrasulfonated phthalocyanine (ClAITSPc) was covalently linked with different sizes of glutathione capped CdTe/CdS/ZnS quantum dots (QDs). The photophysical and Forster resonance energy transfer (FRET) properties of the nanoconjugates were investigated. The CdTe/CdS/ZnS(6.3) nanocomposite showed the highest enhancement in its photophysical properties while (CdTe/CdS/ZnS(3.2) nanocomposite showed the least. Highest FRET efficiency was observed in the linked CdTe/CdS/ZnS(6.3) nanocomposites at 93%. Hence, the combination of CdTe/CdS/ZnS with ClAlTSPc exhibited excellent photophysical properties. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:212 / 221
页数:10
相关论文
共 49 条
[1]   Fluorescence "turn on" probe for bromide ion using nanoconjugates of glutathione-capped CdTe@ZnS quantum dots with nickel tetraamino-phthalocyanine: Characterization and size-dependent properties [J].
Adegoke, Oluwasesan ;
Nyokong, Tebello .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2013, 265 :58-66
[2]   The use of nanocrystals in biological detection [J].
Alivisatos, P .
NATURE BIOTECHNOLOGY, 2004, 22 (01) :47-52
[3]   PREPARATIVE, ANALYTICAL AND FLUORESCENCE SPECTROSCOPIC STUDIES OF SULFONATED ALUMINUM PHTHALOCYANINE PHOTOSENSITIZERS [J].
AMBROZ, M ;
BEEBY, A ;
MACROBERT, AJ ;
SIMPSON, MSC ;
SVENSEN, RK ;
PHILLIPS, D .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 1991, 9 (01) :87-95
[4]  
[Anonymous], 1979, Handbook of XRay photoelectron spectroscopy
[5]   Probing Wave Functions at Semiconductor Quantum-Dot Surfaces by Non-FRET Photoluminescence Quenching [J].
Blaudeck, Thomas ;
Zenkevich, Eduard I. ;
Cichos, Frank ;
von Borczyskowski, Christian .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (51) :20251-20257
[6]  
Bonnett Alastair., 2000, ANTIRACISM
[7]   Structures and properties of 2,3,9,10,16,17,23,24-octasubstituted phthalocyaninato-lead complexes: The substitutional effect study on the basis of density functional theory calculations [J].
Cai, Xue ;
Zhang, Yuexing ;
Zhang, Xianxi ;
Jiang, Jianzhuang .
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 2006, 801 (1-3) :71-80
[8]  
Chong E.Z., 2007, J BIOMED BIOTECHNOL, V54, P1
[9]   METAL PHTHALOCYANINES AND PORPHYRINS AS PHOTOSENSITIZERS FOR REDUCTION OF WATER TO HYDROGEN [J].
DARWENT, JR ;
DOUGLAS, P ;
HARRIMAN, A ;
PORTER, G ;
RICHOUX, MC .
COORDINATION CHEMISTRY REVIEWS, 1982, 44 (01) :83-126
[10]   Femtosecond time-resolved energy transfer from CdSe nanoparticles to phthalocyanines [J].
Dayal, S. ;
Krolicki, R. ;
Lou, Y. ;
Qiu, X. ;
Berlin, J. C. ;
Kenney, M. E. ;
Burda, C. .
APPLIED PHYSICS B-LASERS AND OPTICS, 2006, 84 (1-2) :309-315