Synthesis, characterization, photo and physicochemical properties of 11-mercaptoundecanoic acid and tetraaniline capped CdS quantum dots

被引：3

作者：

Chen, Wen-Yin ^{[1
]}

Ghule, Anil Vithal ^{[1
]}

Chang, Jia-Yaw ^{[1
]}

Chen, Bo-Jung ^{[1
]}

Liu, Jen-Yu ^{[1
]}

Tzing, Shin-Hwa ^{[1
]}

Ling, Yong-Chien ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2010年 / 123卷 / 2-3期

关键词：

CdS; Quantum dots; Polyaniline; Tetraaniline; Photoluminescence; Photostability; SEMICONDUCTOR NANOCRYSTALS; BLOCK-COPOLYMERS; CADMIUM-SULFIDE; NANOPARTICLES; POLYANILINE; NANOCOMPOSITE; FILM;

D O I：

10.1016/j.matchemphys.2010.05.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface modification of quantum dots (QDs) for improved photo and physicochemical properties is a topic of potential technological interest. Herein, we report on the synthesis of aggregation free 11-mercaptoundecanoic acid and tetraaniline (TA) capped CdS QDs with narrow size distribution (similar to 2.3 nm diameter), which are further characterized using UV-visible spectroscopy, photoluminescence spectroscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The TA capped CdS QDs show improved photoluminescence and photostability, which is attributed to the effective grafting of TA on CdS QDs through N-atoms, changing the surface chemical environment and facilitating charge transfer. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：742 / 746

页数：5

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