NDLI: Synthesis of colloidal CuInSe2 nanoparticles by electrical spark discharge in liquid

Content Provider	Springer Nature Link
Author	Mardanian, Mehdi Nevar, Alena A. Nedel’ko, Michael Tarasenko, Nikolai V.
Copyright Year	2013
Abstract	This work presents a low-cost, non-vacuum, and facile process for fabrication of CuInSe2 (CIS) nanoparticles using electrical discharge treatment of mixture of copper, indium, and selenium powders between two tungsten electrodes immersed in pure ethanol. The synthesized particles were characterized by UV-Vis-NIR absorption, X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), Raman spectroscopy, transmission and scanning electron microscopy (TEM and SEM). TEM images exhibited that the final product is mainly composed of a large amount of primary nanoparticles typically 10–40 nm in diameter. The band gap energy value of the nanoparticles was estimated to be around 1.2 eV. The XRD pattern of the as-prepared samples besides the main peaks of chalcopyrite tetragonal CIS showed the diffraction peaks which could be attributed to intermediate phases. To omit the intermediate phases and reach to pure CIS nanoparticles the as-prepared in electrical discharge samples were annealed in vacuum at the temperature of 700 °C during 90 min. The XRD and SEM analysis results of annealed samples clearly indicated that chalcopyrite CuInSe2 particles with good crystallinity and near stoichiometric atomic composition were obtained. The composition and crystalline structure of the product was also confirmed by the room-temperature Raman spectrum showing an intense peak at 172 cm-1 corresponding to the A1 phonon mode of tetragonal CuInSe2 chalcopyrite.
Starting Page	1
Ending Page	6
Page Count	6
File Format	PDF
ISSN	14346060
Journal	The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Volume Number	67
Issue Number	10
e-ISSN	14346079
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-10-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Clusters and Nanostructures Atomic, Molecular, Optical and Plasma Physics Physical Chemistry Quantum Physics Quantum Information Technology, Spintronics Spectroscopy/Spectrometry Nonlinear Dynamics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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