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

fYear

2014

fDate

Sept. 29 2014-Oct. 3 2014

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICEEE.2014.6978309

Filename

6978309