Microwave-assisted polyol method for the preparation of CdSe "nanoballs"

被引:107
作者
Palchik, O
Kerner, R
Gedanken, A [1 ]
Weiss, AM
Slifkin, MA
Palchik, V
机构
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
[2] Jerusalem Coll Technol, Dept Elect, IL-91160 Jerusalem, Israel
关键词
D O I
10.1039/b008088h
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
The microwave-assisted polyol reduction method was applied to the preparation of CdSe "nanoballs". The cubic and hexagonal forms of the CdSe nanoparticles obtained were analyzed by XRD, TEM, HRTEM, UV-VIS, photoluminescence (PL) and photoacoustic spectroscopy. Formation of the hexagonal or cubic form of CdSe depends on the glycol used for reaction. It was found that "nanoballs" are built-up of clusters of CdSe with sizes of a few nanometers. A strong blue shift is observed in the absorption spectrum, as expected for size quantization. A possible reaction mechanism is provided.
引用
收藏
页码:874 / 878
页数:5
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