合成与表征可见红色至近红外区域发光的磷化镉量子点。

Synthesis and characterization of cadmium phosphide quantum dots emitting in the visible red to near-infrared.

机构信息

Physical Chemistry/Electrochemistry, TU Dresden, Bergstr. 66b, D-01062 Dresden, Germany.

出版信息

J Am Chem Soc. 2010 Apr 28;132(16):5613-5. doi: 10.1021/ja9105732.

PMID:20361738

Abstract

The synthesis of high-quality cadmium phosphide quantum dots with emission wavelength maxima in the range from 1200 to approximately 760 nm are reported. The results demonstrate that the nucleation and growth linked with the optical properties can be controlled by the temperature, the growth time, and the addition of ligands such as oleylamine and trioctylphosphine. Photoelectrochemical investigations revealed that the cadmium phosphide QD-derivatized electrodes show an optical response and that photocurrents of several nanoamperes per square centimeter can be obtained upon illumination.

摘要

报道了发射波长最大值在 1200 到约 760nm 范围内的高质量磷化镉量子点的合成。结果表明，通过温度、生长时间以及油胺和三辛基膦等配体的添加，可以控制与光学性质相关的成核和生长。光电化学研究表明，磷化镉量子点修饰电极具有光响应，在光照下可以获得每平方厘米数纳安的光电流。