Highly Luminescent and Quantum-Yielding CdSe/ZnS Core/Shell Quantum Dots Synthesized by a Kinetically Controlled Succession Route In 18DMA

被引：14

作者：

Duan, Hongyan ^{[1
]}

Liu, Xinmei ^{[1
,2
]}

Liu, Chao ^{[1
]}

Han, Tingting ^{[1
]}

Lan, Xinzheng ^{[1
]}

Jiang, Yang ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China

[2] Guangxi Univ Technol, Dept Biol & Chem Engn, Liuzhou 545006, Guangxi, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 03期

基金：

国家高技术研究发展计划(863计划);

关键词：

Growth Models; Nanomaterials; Cadmium Compounds; II-VI Semiconductor; Materials; HIGH-QUALITY CDTE; SOLAR-CELLS; SEMICONDUCTOR NANOCRYSTALS; II-VI; GROWTH; PRECURSOR; FACILE; SIZE; CDS; FLUORESCENCE;

D O I：

10.1166/jnn.2012.5712

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly luminescent and quantum-yielding (QY) CdSe/ZnS core/shell quantum dots (CS QDs) were synthesised via a new succession route in a non-toxic solvent, N,N-Dimethyl-octadecyl-tertiaryamine(18DMA) at a mild temperature. The CS ODs were also proven to be as efficient in reaching high quantum yields (up to 74%) as their reported high-temperature synthesis with organic phosphine ligands. It was demonstrated that the synthesis temperatures directly determine the size by controlling the rate of the monomer diffusion and adsorption. It was also found that the amount of surfactant oleic acid determined the QY of the QDs, whereas it had little influence on the crystallisation.

引用

页码：2326 / 2331

页数：6

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