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

Autor:	O. Palchik, Aharon Gedanken, V. Palchik, M. A. Slifkin, R. Kerner, Aryeh Weiss
Rok vydání:	2001
Předmět:	Reaction mechanism Photoluminescence Absorption spectroscopy Chemistry business.industry General Chemistry Blueshift Optics Nanocrystal Chemical engineering Materials Chemistry Nanometre High-resolution transmission electron microscopy business Photoacoustic spectroscopy
Zdroj:	Journal of Materials Chemistry. 11:874-878
ISSN:	1364-5501 0959-9428
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::04edf970049bbd4d4e801350a2b1d1a2 https://doi.org/10.1039/b008088h Zobrazit plný text záznamu