Sonochemical preparation of GaSb nanoparticles.
A room temperature sonochemical method for the preparation of GaSb nanoparticles using less hazardous Ga and antimony chloride (SbCl(3)) as the precursors has been described. The formation of GaSb has been confirmed by means of XRD, EDAX, and XPS characterization. TEM and SAED results show that the as-prepared solid consists of nanosized GaSb crystals with sizes in the range 20-30 nm. The photoacoustic spectrum result reveals that the GaSb nanoparticles have a direct band gap of about 1.21 eV. On the basis of the control experiments and the extreme conditions produced by ultrasound, an ultrasound-assisted in-situ reduction/combination mechanism has been proposed to explain the reaction.
Li
Hong-Liang
HL
Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel.
Zhu
Ying-Chun
YC
Palchik
Oleg
O
Koltypin
Yuri
Y
Gedanken
Aharon
A
Palchik
Valery
V
Slifkin
Michael
M
Weiss
Aryeh
A