TY - GEN
T1 - A novel spray based method for the production of semiconductor nanocrystals
AU - Amirav, Lilac
AU - Lifshitz, Efrat
PY - 2005
Y1 - 2005
N2 - We present a novel spray based method for the formation and production of semiconductor nanocrystals that provides an attractive alternative to the commonly used epitaxial and colloidal procedures. According to this spray-based method, mainly thermospray, solutions of semiconductor salts are first sprayed into monodispersed droplets, which subsequently become solid nanoparticles by solvent evaporation. A semiconductor nanoparticle is produced from a single spray droplet upon the full vaporization of the solvent. The average diameter and size distribution of the final nanocrystals arc controlled and determined by the solute concentration of the sprayed solution and by the droplet size, hence by the spray production parameters. The spray-produced nanocrystals are collected on any selected solid support. Representative results, shown in this paper, reveal the formation of CdS nanocrystals in the size range of 3 to 6 nanometer and with a size distribution of as low as five percenls. A further structural analysis of these nanocrystals showed that they were formed in the zinc blend phase with high degree of cryslallinity.
AB - We present a novel spray based method for the formation and production of semiconductor nanocrystals that provides an attractive alternative to the commonly used epitaxial and colloidal procedures. According to this spray-based method, mainly thermospray, solutions of semiconductor salts are first sprayed into monodispersed droplets, which subsequently become solid nanoparticles by solvent evaporation. A semiconductor nanoparticle is produced from a single spray droplet upon the full vaporization of the solvent. The average diameter and size distribution of the final nanocrystals arc controlled and determined by the solute concentration of the sprayed solution and by the droplet size, hence by the spray production parameters. The spray-produced nanocrystals are collected on any selected solid support. Representative results, shown in this paper, reveal the formation of CdS nanocrystals in the size range of 3 to 6 nanometer and with a size distribution of as low as five percenls. A further structural analysis of these nanocrystals showed that they were formed in the zinc blend phase with high degree of cryslallinity.
UR - http://www.scopus.com/inward/record.url?scp=34249940585&partnerID=8YFLogxK
U2 - 10.1557/proc-879-z3.7
DO - 10.1557/proc-879-z3.7
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AN - SCOPUS:34249940585
SN - 1558998330
SN - 9781558998339
T3 - Materials Research Society Symposium Proceedings
SP - 19
EP - 24
BT - Chemistry of Nanomaterial Synthesis and Processing
T2 - 2005 MRS Spring Meeting
Y2 - 28 March 2005 through 1 April 2005
ER -