Shape Control of Doped Semiconductor Nanocrystals (d-Dots)

by Viswanatha, R.; Battaglia, D. M.; Curtis, M. E.; Mishima, T. D.; Johnson, M. B.; Peng, X. G.

Formation of Mn(2+)-doped ZnSe quantum dots (Mn:ZnSe d-dots) with both branched and nearly spherical shapes has been studied. Structure analysis indicates that the Mn(2+) dopants were localized in the core of a branched nanocrystal. The growth of branched d-dots, rather than spherical ones, was achieved by simply varying the concentration of two organic additives, fatty acids, and fatty amines. The photoluminescence properties of the branched nanocrystals were explored and compared with those of the nearly spherical particles.

Journal
Nano Research
Volume
1
Issue
2
Year
2008
Start Page
138-144
URL
https://dx.doi.org/10.1007/s12274-008-8016-5
ISBN/ISSN
1998-0000; 1998-0124
DOI
10.1007/s12274-008-8016-5