Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8017151 | Materials Letters | 2016 | 10 Pages |
Abstract
The synthesis of nanocrystalline ternary CuInSe2 particles prepared by high-energy milling in a planetary mill in an argon atmosphere from copper, indium and selenium was reported. CuInSe2 particles crystallize in the tetragonal structure with the crystallite size of about 30.5Â nm. The Raman spectrum of CuInSe2 nanoparticles shows a strong peak at 176Â cmâ1 corresponds to the A1 phonon mode of tetragonal CuInSe2 chalcopyrite. HRTEM measurements also revealed the presence of nanocrystals with the size of 10-20Â nm with the tendency to form agglomerates. The optical absorption study shows that nanoparticles have direct optical band gap energy of 1.8Â eV. The quantum size effect of the particles was confirmed also by PL measurement.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Erika Dutková, MarÃa J. Sayagués, Jaroslav KováÄ, Jaroslav Jr., Zdenka BujÅáková, Jaroslav BrianÄin, Anna Zorkovská, Peter Baláž, Jana Ficeriová,