One-pot synthesis and characterization of high-quality CdSe/ZnX (X = S, Se) nanocrystals via the CdO precursor

被引：42

作者：

Huang, GW ^{[1
]}

Chen, CY ^{[1
]}

Wu, KC ^{[1
]}

Ahmed, MO ^{[1
]}

Chou, PT ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

来源：

JOURNAL OF CRYSTAL GROWTH | 2004年 / 265卷 / 1-2期

关键词：

low dimensional structures; nanomaterials; semiconducting II-VI materials;

D O I：

10.1016/j.jcrysgro.2004.01.064

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We report on the synthesis of CdSe/ZnX (X = S, Se) core/shell quantum dots from the CdO presursor through a convenient, one-pot approach. The defocusing stage (i.e.. Oswald Ripening) can be finely controlled to prepare nearly monodispersive core/shell quantum dots. The resulting particles have been characterized by their corresponding optical properties. energy dispersive spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and powder XRD. This method is highly reproducible, and quantum efficiencies as high as 0.7 can be achieved. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：250 / 259

页数：10

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