Optical properties of CdSe and CdSe/ZnS quantum dots dispersed in solvents of different polarity

被引：3

作者：

Abazovic, N. D. ^{[1
]}

Kuljanin-Jakovljevic, J. Z. ^{[1
]}

Comor, M. I. ^{[1
]}

机构：

[1] Vinca Inst Nucl Sci, Belgrade 11001, Serbia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2009年 / 83卷 / 09期

关键词：

NANOCRYSTALS; CDTE;

D O I：

10.1134/S0036024409090167

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Original organic capping TOPO/TOP groups of CdSe and CdSe/ZnS quantum dots (QDs), from mother solution were replaced with 2_mercaptoethanol, which was chosen as model compound, in order to achieve water solubility. Obtained water dispersions of CdSe and CdSe/ZnS QDs were characterized by UV/VIS absorption and luminescence techniques. Luminescence measurements revealed that bare cores are very sensitive to surface capping, transfer into water diminished emission intensity. Core/shell, CdSe/ZnS, QDs are much more resistant to changes of the capping and solvent, and significant part of emission intensity was preserved in water.

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页码：1511 / 1514

页数：4

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