Ligand effects on optical properties of CdSe nanocrystals

被引：397

作者：

Kalyuzhny, G ^{[1
]}

Murray, RW ^{[1
]}

机构：

[1] Univ N Carolina, Kenan Labs Chem, Chapel Hill, NC 27599 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 15期

关键词：

D O I：

10.1021/jp045352x

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：

We report effects of various organic and inorganic ligands on optical properties of CdSe nanocrystals (NCs) by changes in their photoluminescence and absorbance spectra. Surface ligand loss occurring during dilution and purification of solutions of CdSe NCs leads to a decrease of photoluminescence intensity. The complex of trioctylphosphine with Se atoms on the surface of CdSe NCs is found responsible for the trap emission band that is red-shifted relative to the photoluminescence band edge.

引用

页码：7012 / 7021

页数：10

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