Synthesis and Optical Properties of CdSe Nano-crystals: Effective Use of Organoselenium Compound in Nanochemistry.

Authors :: Khanna, P.K.
Source :: Synthesis & Reactivity in Inorganic, Metal-Organic, & Nano-Metal Chemistry. 2008, Vol. 38 Issue 5, p409-413. 5p. 1 Black and White Photograph, 1 Diagram, 7 Graphs.
Publication Year :: 2008
Abstract: Surface capped CdSe nano-crystals (NCs) have been synthesized from cadmium acetate and octeno-1,2,3-selenadiazole in tri-octylphosphine (TOP). Well dispersed CdSe nano-particles showed an absorption band at 522 nm (2.36 eV) and emissions at 525 nm at an excitation wavelength of 450 nm, revealing near band-gap emission from isolated crystals. Broadened X-ray diffraction (XRD) pattern revealed cubic crystal structure of CdSe with crystallite size of less than 10 nm. X-ray photoelectron spectroscopy (XPS) showed that nano-crystals are air-stable and the presence of TOP around the particles was confirmed by infra-red (IR) spectroscopy. [ABSTRACT FROM AUTHOR]

Subjects :: *NANOCRYSTALS
*NANOCHEMISTRY
*ORGANOSELENIUM compounds
*NANOPARTICLES
*CRYSTALS

Language :: English
ISSN :: 15533174
Volume :: 38
Issue :: 5
Database :: Academic Search Index
Journal :: Synthesis & Reactivity in Inorganic, Metal-Organic, & Nano-Metal Chemistry
Publication Type :: Academic Journal
Accession number :: 33372359
Full Text :: https://doi.org/10.1080/15533170802216114

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