Synthesis of CdTe Nanocrystals with Mercaptosuccinic Acid as Stabilizer

2008 ◽  
Vol 8 (9) ◽  
pp. 4408-4414 ◽  
Author(s):  
Chao Wang ◽  
Qiang Ma ◽  
Xingguang Su
Keyword(s):  
Hydrothermal Synthesis ◽  
Quantum Yield ◽  
Growth Process ◽  
Thioglycolic Acid ◽  
Water Soluble ◽  
Narrow Size Distribution ◽  
High Quality ◽  
Cdte Nanocrystals ◽  
Mercaptosuccinic Acid ◽  
Photoluminescence Quantum Yield

Water soluble high quality CdTe nanocrystals (NCs) with mercaptosuccinic acid (MSA) as stabilizer are prepared by refluxing and hydrothermal synthesis in this paper. The MSA stabilizer which comprises both thioglycolic acid (TGA)-like and 3-mercaptopropionic acid (MPA)-like moieties can accelerate the whole growth process of CdTe NCs comparing with TGA-like or MPA-like stabilizer. It takes only 5 min and 2 hours to obtain green emitting (luminescence maximum at 526 nm) and red emitting (luminescence maximum at ∼650 nm) from CdTe NCs, respectively. In this study, the influences of the ratios of precursors and temperature on CdTe NCs synthesis were studied in detail, and the stable CdTe NCs with high photoluminescence quantum yield and narrow size distribution can be obtained under optimal condition by both routes. The luminescence quantum yield of the green-yellow emitting CdTe NCs obtained in this study can reach 75.2%.

Water–ethanol solvent mixtures: a promising liquid environment for high quality positively-charged CdTe nanocrystal preparation

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18379-18383 ◽  
Author(s):  
Yuan Jiang ◽  
Shuhong Xu ◽  
Zengxia Zhao ◽  
Liang Zheng ◽  
Zhuyuan Wang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Solvent Mixture ◽  
Solvent Mixtures ◽  
High Quality ◽  
Liquid Environment ◽  
Cdte Nanocrystals ◽  
Photoluminescence Quantum Yield ◽  
Cdte Nanocrystal ◽  
Positively Charged

In this work, the photoluminescence quantum yield of positively-charged CdTe nanocrystals was brought up to 31% in a water–ethanol solvent mixture.

Fabrication of Water-Soluble, Green-Emitting Gold Nanoclusters with a 65% Photoluminescence Quantum Yield via Host–Guest Recognition

2017 ◽  
Vol 29 (3) ◽  
pp. 1362-1369 ◽  
Author(s):  
Hao-Hua Deng ◽  
Xiao-Qiong Shi ◽  
Fei-Fei Wang ◽  
Hua-Ping Peng ◽  
Ai-Lin Liu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Gold Nanoclusters ◽  
Water Soluble ◽  
Photoluminescence Quantum Yield

Preparation of water-soluble, PEGylated, mixed-dispersant quantum dots, with a preserved photoluminescence quantum yield

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 27068-27076 ◽  
Author(s):  
C. Zaba ◽  
O. Bixner ◽  
F. Part ◽  
C. Zafiu ◽  
C.-W. Tan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Environmental Monitoring ◽  
Biomedical Applications ◽  
Water Soluble ◽  
Photoluminescence Quantum Yield

We present the preparation of PEGylated mixed dispersant QDs from water-soluble nanocrystals, relevant for biomedical applications and environmental monitoring. We mastered control over grafting densities and PEG-conformation while retaining PLQY.

Hydrothermal Synthesis for High-Quality CdTe Nanocrystals

2003 ◽  
Vol 15 (20) ◽  
pp. 1712-1715 ◽  
Author(s):  
H. Zhang ◽  
L. Wang ◽  
H. Xiong ◽  
L. Hu ◽  
B. Yang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
High Quality ◽  
Cdte Nanocrystals

In situ synthesis of blue-emitting bromide-based perovskite nanoplatelets towards unity quantum efficiency and ultrahigh stability

2021 ◽  
Vol 9 (16) ◽  
pp. 5535-5543
Author(s):  
Hao Huang ◽  
Weiren Zhao ◽  
Huanxin Yang ◽  
Xiaoli Zhang ◽  
Jinnan Su ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Quantum Efficiency ◽  
In Situ Synthesis ◽  
Cross Linking ◽  
High Quality ◽  
Photoluminescence Quantum Yield

In situ cross-linking passivation strategy for high-quality perovskite nanoplatelets with unity photoluminescence quantum yield.

scholarly journals Photoluminescent Properties of CdTe Nanocrystals in Colloidal Solutions and Polymer Films

2016 ◽  
Vol 17 (1) ◽  
pp. 60-64
Author(s):  
S.I. Budzulyak ◽  
V.M. Yermakov ◽  
O.A. Kapush ◽  
D.V. Korbutyak ◽  
V.М. Tomashyk ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Aqueous Solutions ◽  
Vinyl Acetate ◽  
Polymer Films ◽  
Matrix Material ◽  
Colloidal Solutions ◽  
Acrylate Copolymer ◽  
Cdte Nanocrystals ◽  
Photoluminescence Quantum Yield ◽  
The Matrix

Using stabilizers and promoters we have obtained colloidal CdTe nanocrystals (NCs) in aqueous solutions. Incorporation of the CdTe NCs into polymer films has been fulfilled subsequently. It is shown that the use of vinyl acetate-acrylate copolymer as the matrix material for CdTe NC incorporation from colloidal solutions allows to get stable and nontoxic nanoheterogeneous film structures, which are characterized by satisfactory values of the photoluminescence quantum yield. Photoluminescence characteristics of the studied materials have been analyzed.

One-Step Synthesis of Superbright Water-Soluble Silicon Nanoparticles with Photoluminescence Quantum Yield Exceeding 80%

2015 ◽  
Vol 2 (16) ◽  
pp. 1500360 ◽  
Author(s):  
Fu-Gen Wu ◽  
Xiaodong Zhang ◽  
Siqi Kai ◽  
Mengyi Zhang ◽  
Hong-Yin Wang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Silicon Nanoparticles ◽  
Water Soluble ◽  
Photoluminescence Quantum Yield ◽  
One Step ◽  
Soluble Silicon

scholarly journals Aqueous Synthesis of CdTe Quantum Dot Using Dithiol-Functionalized Ionic Liquid

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Suk Young Choi ◽  
Jong Pil Shim ◽  
Dong Sun Kim ◽  
TaeYoung Kim ◽  
Kwang S. Suh
Keyword(s):  
Ionic Liquid ◽  
Quantum Dot ◽  
Water Soluble ◽  
Ligand Molecule ◽  
Synthetic Route ◽  
Aqueous Synthesis ◽  
Cdte Nanocrystals ◽  
Photoluminescence Quantum Yield ◽  
Improved Stability ◽  
Cdte Quantum Dot

We report on an aqueous synthesis of cadmium telluride (CdTe) nanocrystals by using dithiol-functionalized ionic liquids (dTFILs). The dTFILs were designed to have dithiol and vinylimidazolium functional groups and used as a ligand molecule of CdTe quantum dot (QD) to utilize the bidendate chelate interaction afforded by the dithiol groups of dTFILs. The photoluminescence quantum yield of dTFIL-capped CdTe QDs reached up to ~40%, and their luminescent property was maintained for 8 weeks, suggesting an improved stability in water phase. This approach will provide a new synthetic route to the water soluble QDs.

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