Control of the optical properties of quantum dots by surface coating with calix[n]arene carboxylic acids

被引：93

作者：

Jin, Takashi ^{[1
]}

Fujii, Fumihiko

Yamada, Eiji

Nodasaka, Yoshinobu

Kinjo, Masataka

机构：

[1] Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 0600812, Japan

[2] Hokkaido Univ, Fac Engn, Sapporo, Hokkaido 0608628, Japan

[3] Hokkaido Univ, Fac Med Dent, Sapporo, Hokkaido 0608586, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 29期

关键词：

D O I：

10.1021/ja062021k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new method for the control of the optical properties of quantum dots (QDs) has been developed using calix[n]arene carboxylic acids (1-3) as surface coating agents for QDs. The calixarene coating of CdSe/ZnS QDs was easily performed in tetrahydrofuran at room temperature. Deprotonation of the carboxyl groups of the calixarene derivatives surrounding the QDs resulted in highly fluorescent water-soluble QDs. The emission peak of the calixarene-coated QDs shifted to longer wavelengths depending on the oligomer size of the calix[n]arene derivative used for the surface coating. Although the red shift of the emission peak decreases with the increase in the particle size of QDs, this surface coating method is useful for the preparation of multi-colored water-soluble QDs from a single-colored hydrophobic QD. Copyright © 2006 American Chemical Society.

引用

页码：9288 / 9289

页数：2

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