Identification of mass fractal in chemically synthesized ZnS quantum dots

被引:6
|
作者
Vogel, W
Dhayagude, D
Chitra, R
Sen, D
Mazumder, S
Kulkarni, SK
机构
[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
[2] Univ Poona, Dept Phys, Pune 411007, Maharashtra, India
[3] Bhabha Atom Res Ctr, Trombay 400085, Mumbai, India
关键词
D O I
10.1023/A:1020675710868
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Zinc sulphide quantum dots chemically capped with thioglycerol having two different sizes have been synthesized. The particles have a disordered sphalerite structure and are slightly contracted by 1% against the bulk. Small angle X-ray scattering investigations reveal that powders of these nanocrystallites are mass fractals that aggregate via a reaction-limited process to form irregular but rather dense networks with a fractal dimensionality of D-f = 2.7 and 2.1, respectively. (C) 2002 Kluwer Academic Publishers.
引用
收藏
页码:4545 / 4553
页数:9
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