Article ID Journal Published Year Pages File Type
1795574 Journal of Crystal Growth 2008 5 Pages PDF
Abstract

The influences of substrate steps on crystallographic orientation of para-quaterphenylene (p-4P) thin films deposited on potassium chloride (KCl) (0 0 1) cleaved in ultrahigh vacuum have been studied in needle-shaped crystals preferentially nucleated at the step edges of the substrates. Surprisingly, most of the crystals nucleated on the so-called tartan zone of the KCl (0 0 1) substrate did not grow epitaxially, but became aligned in the directions of the cleaved steps, indicating the onset of grapho-epitaxy. The effects of step height and width on the nucleation and growth of p-4P crystals have been discussed.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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