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Insights Into the Solution Crystallization of Oriented Alq3 and Znq2 Microprisms and Nanorods

Insights Into the Solution Crystallization of Oriented Alq3 and Znq2 Microprisms and Nanorods

Joel Boulet, Arash Mohammadpour, Karthik Shankar

J Nanosci Nanotechnol. 2015 Sep;15(9):6680-9.

PMID: 26716228

Abstract:

Optimized solution-based methods to grow high quality micro- and nanocrystals of organic semi-conductors with defined size, shape and orientation are important to a variety of optoelectronic applications. In this context, we report the growth of single crystal micro- and nanostructures of the organic semiconductors Tris(8-hydroxyquinoline)aluminum (Alq3) and bis(8-hydroxyquinoline)zinc (Znq2) terminating in flat crystal planes using a combination of evaporative and antisolvent crystallization. By controlling substrate-specific nucleation and optimizing the conditions of growth, we generate vertically-oriented hexagonal prism arrays of Alq3, and vertical half-disks and sharp-edged rectangular prisms of Znq2. The effect of process variables such as ambient vapour pressure, choice of anti-solvent and temperature on the morphology and crystal habit of the nanostructures were studied and the results of varying them catalogued to gain a better understanding of the mechanism of growth.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP13978853	8-Hydroxyquinoline zinc		13978-85-3	Price

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