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

Authors
Palchik, O Kerner, R Gedanken, A Weiss, AM Slifkin, MA Palchik, V
Citation
O. Palchik et al., Microwave-assisted polyol method for the preparation of CdSe "nanoballs", J MAT CHEM, 11(3), 2001, pp. 874-878
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428 → ACNP
Volume
11
Issue
3
Year of publication
2001
Pages
874 - 878
Database
ISI
SICI code
0959-9428(2001)11:3<874:MPMFTP>2.0.ZU;2-I
Abstract
The microwave-assisted polyol reduction method was applied to the preparati on of CdSe "nanoballs". The cubic and hexagonal forms of the CdSe nanoparti cles obtained were analyzed by XRD, TEM, HRTEM, UV-VIS, photoluminescence ( PL) and photoacoustic spectroscopy. Formation of the hexagonal or cubic for m of CdSe depends on the glycol used for reaction. It was found that "nanob alls" are built-up of clusters of CdSe with sizes of a few nanometers. A st rong blue shift is observed in the absorption spectrum, as expected for siz e quantization. A possible reaction mechanism is provided.