Enhanced photoluminescence and thermal stability of zinc quinolate following complexation on the surface of quantum dots

被引:26
作者
Bhandari, Satyapriya [1 ]
Roy, Shilaj [2 ]
Chattopadhyay, Arun [1 ,2 ]
机构
[1] Indian Inst Technol, Dept Chem, Gauhati 781039, Assam, India
[2] Indian Inst Technol, Ctr Nanotechnol, Gauhati 781039, Assam, India
关键词
FUNCTIONALIZED ZNS NANOPARTICLES; LIGAND-EXCHANGE; IN-VITRO; 8-HYDROXYQUINOLINE;
D O I
10.1039/c4ra03341h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Reaction between colloidal ZnS nanocrystals (NCs) and 8-hydroxy quinoline (HQ) led to complexation on the surface of the NCs. The quantumdot complex (QDC), with ZnQ(2) attached to the surface of the NC, has a longer emissive lifetime, higher fluorescence quantum yield and enhanced thermal stability, making it a better LED material than ZnQ(2).
引用
收藏
页码:24217 / 24221
页数:5
相关论文
共 26 条
[11]   A Ligand Exchange Route to Highly Luminescent Surface-Functionalized ZnS Nanoparticles and Their Transparent Polymer Nanocomposites [J].
Lue, Changli ;
Gao, Junfang ;
Fu, Yuqin ;
Du, Yaying ;
Shi, Yongli ;
Su, Zhongmin .
ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (19) :3070-3079
[12]   White light emission from Mn2+ doped ZnS nanocrystals through the surface chelating of 8-hydroxyquinoline-5-sulfonic acid [J].
Lue, Xiaodan ;
Yang, Jing ;
Fu, Yuqin ;
Liu, Qianqian ;
Qi, Bin ;
Lue, Changli ;
Su, Zhongmin .
NANOTECHNOLOGY, 2010, 21 (11)
[13]   Ubiquinone-quantum dot bioconjugates for in vitro and intracellular complex I sensing [J].
Ma, Wei ;
Qin, Li-Xia ;
Liu, Feng-Tao ;
Gu, Zhen ;
Wang, Jian ;
Pan, Zhi Gang ;
James, Tony D. ;
Long, Yi-Tao .
SCIENTIFIC REPORTS, 2013, 3
[14]  
Medintz IL, 2010, NAT MATER, V9, P676, DOI [10.1038/NMAT2811, 10.1038/nmat2811]
[15]   Interactions between Redox Complexes and Semiconductor Quantum Dots Coupled via a Peptide Bridge [J].
Medintz, Igor L. ;
Pons, Thomas ;
Trammell, Scott A. ;
Grimes, Amy F. ;
English, Doug S. ;
Blanco-Canosa, Juan B. ;
Dawson, Philip E. ;
Mattoussi, Hedi .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (49) :16745-16756
[16]   Spontaneous superlattice formation in nanorods through partial cation exchange [J].
Robinson, Richard D. ;
Sadtler, Bryce ;
Demchenko, Denis O. ;
Erdonmez, Can K. ;
Wang, Lin-Wang ;
Alivisatos, A. Paul .
SCIENCE, 2007, 317 (5836) :355-358
[17]   Light-emitting diodes with semiconductor nanocrystals [J].
Rogach, Andrey L. ;
Gaponik, Nikolai ;
Lupton, John. M. ;
Bertoni, Cristina ;
Gallardo, Diego E. ;
Dunn, Steve ;
Pira, Nello Li ;
Paderi, Marzia ;
Repetto, Piermario ;
Romanov, Sergei G. ;
O'Dwyer, Colm ;
Torres, Clivia M. Sotomayor ;
Eychmueller, Alexander .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (35) :6538-6549
[18]   Electroluminescent zinc(II) bis(8-hydroxyquinoline): Structural effects on electronic states and device performance [J].
Sapochak, LS ;
Benincasa, FE ;
Schofield, RS ;
Baker, JL ;
Riccio, KKC ;
Fogarty, D ;
Kohlmann, H ;
Ferris, KF ;
Burrows, PE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (21) :6119-6125
[19]   Selective CO2 Conversion to Formate Conjugated with H2O Oxidation Utilizing Semiconductor/Complex Hybrid Photocatalysts [J].
Sato, Shunsuke ;
Arai, Takeo ;
Morikawa, Takeshi ;
Uemura, Keiko ;
Suzuki, Tomiko M. ;
Tanaka, Hiromitsu ;
Kajino, Tsutomu .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (39) :15240-15243
[20]   Three-color, tunable, organic light-emitting devices [J].
Shen, ZL ;
Burrows, PE ;
Bulovic, V ;
Forrest, SR ;
Thompson, ME .
SCIENCE, 1997, 276 (5321) :2009-2011