Title :
Effect of milling time on mechanically alloyed Cu(In, Ga)Se2 nanoparticles
Author :
Rohini, M. ; Reyes, P. ; Velumani, S. ; Becerril-Juarez, I.G.
Author_Institution :
Dept. of Electr. Eng., CINVESTAV-IPN, Mexico City, Mexico
fDate :
Sept. 29 2014-Oct. 3 2014
Abstract :
Copper indium gallium diselenide alloy powders were synthesised by mechanical alloying of elemental Cu, In, Ga and Se in a planetary ball mill. Effect of milling time on structure of CIGS nanoparticles was studied using X-ray diffraction measurements. Influence of milling time on phase evolution, cell parameters and crystallite size was reported in detail. FESEM analysis provided information on the morphological changes of CIGS particle during milling. EDAX results revealed dependence of milling time on composition of product particles. A tendency of increasing Cu and decreasing Se concentration with milling time was observed. Cu and Ga rich CIGS nanoparticles were obtained after milling for 6 h. The sample obtained after 6 h of milling showed homogeneous composition.
Keywords :
X-ray chemical analysis; X-ray diffraction; ball milling; copper compounds; field emission electron microscopy; gallium compounds; indium compounds; mechanical alloying; nanofabrication; nanoparticles; scanning electron microscopy; semiconductor growth; semiconductor materials; Cu(InGa)Se2; EDAX; FESEM; X-ray diffraction; cell parameters; copper indium gallium diselenide alloy powders; crystallite size; homogeneous composition; mechanically alloyed nanoparticles; milling time; phase evolution; planetary ball mill; time 6 h; Alloying; Gallium; Milling; Nanoparticles; Powders; CuIn0.5Ga0.5Se2 nanoparticle; EDAX; FESEM; mechanical alloying;
Conference_Titel :
Electrical Engineering, Computing Science and Automatic Control (CCE), 2014 11th International Conference on
Conference_Location :
Campeche
Print_ISBN :
978-1-4799-6228-0
DOI :
10.1109/ICEEE.2014.6978309
