n. The rod shaped CdSe nanomaterials of
lengths and breadths up to 1 μm and 200 nm, respectively with aspect ratios from 3 to 5 were grown in the
case of microemulsions containing lower water content, water to surfactant concentrations ratio, w0= 10.
In contrast, the cubic shaped CdSe nanomaterials of dimensions about 100 nm were formed in the
microemulsions with higher water contents, w0 values from 20 to 40. Such a transformation of shape from rod
to cube was attributed to the change in the hydrophobicity and hydrophilicity of the micro-environment in
the microemulsions. The as-grown CdSe nanomaterials were stable at ambient conditions and thus expected
to be very useful in the device applications.
© 2011 Elsevier B.V. All rights reserved