Synthesis of ZnO Quantum Dots with Enhanced Fluorescence Quantum Yield

被引：1

作者：

Pospisilova, Martina ^{[1
]}

Mrazek, Jiri ^{[1
,2
]}

Kettou, Sofiane ^{[1
]}

Dusikova, Monika ^{[1
]}

Matuska, Vit ^{[1
]}

Velebny, Vladimir ^{[1
]}

机构：

[1] Contipro Biotech SRO, Dolni Dobrouc 401, Dolni Dobrouc 56102, Czech Republic

[2] Charles Univ Prague, Fac Med 3, Dept Med Biophys & Med Informat, Prague 10000, Czech Republic

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 07期

关键词：

ZnO; Quantum Dots; Silanization; Quantum Yield; VISIBLE PHOTOLUMINESCENCE; SELECTIVE DETECTION; NANOPARTICLES; NANOCRYSTALS; GROWTH;

D O I：

10.1166/jnn.2016.12439

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oleate-capped ZnO quantum dots were prepared by modified oxygen-deficient sol-gel synthesis. The as-prepared quantum dots exhibit 1.3-fold increase in fluorescence quantum yield compared to ZnO prepared by common synthesis. To transfer these quantum dots from organic phase into water, oleate molecules were exchanged for linear aminosiloxanes or branched siloxane-based poly(amidoamine) dendrons. The impact of ligand type on quantum yield and colloidal stability of ZnO samples was studied.

引用

页码：7622 / 7629

页数：8

共 28 条

[1] Physicochemical properties and cellular toxicity of (poly)aminoalkoxysilanes-functionalized ZnO quantum dots [J].

Aboulaich, Abdelhay ;

Tilmaciu, Carmen-Mihaela ;

Merlin, Christophe ;

Mercier, Cedric ;

Guilloteau, Helene ;

Medjahdi, Ghouti ;

Schneider, Raphael .

NANOTECHNOLOGY, 2012, 23 (33)

[2] Defect rich seed mediated growth: a novel synthesis method to enhance defect emission in nanocrystals [J].

Asok, Adersh ;

Kulkarni, A. R. ;

Gandhi, Mayuri N. .

JOURNAL OF MATERIALS CHEMISTRY C, 2014, 2 (09) :1691-1697

[3] Enhanced visible photoluminescence in ZnO quantum dots by promotion of oxygen vacancy formation [J].

Asok, Adersh ;

Gandhi, Mayuri N. ;

Kulkarni, A. R. .

NANOSCALE, 2012, 4 (16) :4943-4946

[4] Dissolution Kinetics and Solubility of ZnO Nanoparticles Followed by AGNES [J].

David, Calin A. ;

Galceran, Josep ;

Rey-Castro, Carlos ;

Puy, Jaume ;

Companys, Encarnacio ;

Salvador, Jose ;

Monne, Josep ;

Wallace, Rachel ;

Vakourov, Alex .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (21) :11758-11767

[5]

Grabolle M., 2008, Anal. Chem, V81, P6285, DOI DOI 10.1021/ac900308v

[6] Synthesis of water-dispersible zinc oxide quantum dots with antibacterial activity and low cytotoxicity for cell labeling [J].

Hsu, Shan-hui ;

Lin, Ying Yi ;

Huang, Sherry ;

Lem, Kwok Wai ;

Dinh Huong Nguyen ;

Lee, Dai Soo .

NANOTECHNOLOGY, 2013, 24 (47)

[7] Controlled photostability of luminescent nanocrystalline ZnO solution for selective detection of aldehydes [J].

Jana, Nikhil R. ;

Yu, Hsiao-hua ;

Ali, Emril Mohamed ;

Zheng, Yuangang ;

Ying, Jackie Y. .

CHEMICAL COMMUNICATIONS, 2007, (14) :1406-1408

[8] Enzyme-conjugated ZnO nanocrystals for collisional quenching-based glucose sensing [J].

Kim, Ki-Eun ;

Kim, Tae Geun ;

Sung, Yun-Mo .

CRYSTENGCOMM, 2012, 14 (08) :2859-2865

[9] Fluorescence-enhanced gadolinium-doped zinc oxide quantum dots for magnetic resonance and fluorescence imaging [J].

Liu, Yanlan ;

Ai, Kelong ;

Yuan, Qinghai ;

Lu, Lehui .

BIOMATERIALS, 2011, 32 (04) :1185-1192

[10] Bioimaging application of highly luminescent silica-coated ZnO-nanoparticle quantum dots with biotin [J].

Matsuyama, Kiyoshi ;

Ihsan, Neil ;

Irie, Keiichi ;

Mishima, Kenichi ;

Okuyama, Tetsuya ;

Muto, Hiroyuki .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2013, 399 :19-25

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