TY - JOUR
T1 - Synthesis and characterization of PbS nanocrystallites organized into different morphological assemblies
AU - Saraidarov, T.
AU - Reisfeld, R.
AU - Sashchiuk, A.
AU - Lifshitz, E.
PY - 2004/10/15
Y1 - 2004/10/15
N2 - We present a new, simple procedure for the synthesis of PbS nanocrystallites (NCs) via a solvothermal reaction based on decomposition of lead thiocyanate in a boiling solvent, in the presence of the surfactant cetyltrimethylammoniumbromide (CTAB). Fractional precipitation was used to obtain a narrow size distribution of NCs. The formation of different morphological assemblies depends on the reaction time. The sizes of PbS NCs in ranges of 3-7nm and 8-14nm were determined by transmission electron microscopy (TEM) and by the blue shift of the absorption edge. The statistical TEM analysis enables characterization of size distribution of the particles. Dependence of the size and the shape of PbS NCs on the kinds of solvents, surfactants, and the thermal treatments has been demonstrated. The selected area electron diffraction (SAED) confirmed the existence of the rock salt cubic structure of the PbS NCs.
AB - We present a new, simple procedure for the synthesis of PbS nanocrystallites (NCs) via a solvothermal reaction based on decomposition of lead thiocyanate in a boiling solvent, in the presence of the surfactant cetyltrimethylammoniumbromide (CTAB). Fractional precipitation was used to obtain a narrow size distribution of NCs. The formation of different morphological assemblies depends on the reaction time. The sizes of PbS NCs in ranges of 3-7nm and 8-14nm were determined by transmission electron microscopy (TEM) and by the blue shift of the absorption edge. The statistical TEM analysis enables characterization of size distribution of the particles. Dependence of the size and the shape of PbS NCs on the kinds of solvents, surfactants, and the thermal treatments has been demonstrated. The selected area electron diffraction (SAED) confirmed the existence of the rock salt cubic structure of the PbS NCs.
UR - http://www.scopus.com/inward/record.url?scp=9544239370&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2004.08.155
DO - 10.1016/j.jnoncrysol.2004.08.155
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AN - SCOPUS:9544239370
SN - 0022-3093
VL - 345-346
SP - 698
EP - 702
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
T2 - Physics of Non-Crystalline Solids 10
Y2 - 15 October 2004 through 15 October 2004
ER -