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Title: Polar growth and directional adsorption of large AlPO4-5 crystals determined by scanning pyroelectric microscopy
Authors: Klap, GJ ×
W├╝bbenhorst, Michael
Jansen, JC
van Koningsveld, H
van Bekkum, H
van Turnhout, J #
Issue Date: Dec-1999
Publisher: American Chemical Society
Series Title: Chemistry of materials vol:11 issue:12 pages:3497-3503
Abstract: Scanning pyroelectric microscopy on large crystals reveals the three-dimensional polarization distribution in AlPO4-5 crystals. AlPO4-5 probably grows in such a way that one particular absolute configuration is formed. In general twinned crystals are formed. The twin domains exhibit an opposite polarization. A single domain is found when crystals are grown from a substrate. In some cases the crystals show a more complex domain structure, which can be attributed to specific growth conditions. From the polarization distribution the history of the crystal growth can be retrieved. A mechanism for the adsorption of p-nitroaniline molecules is proposed on the basis of the polarization distribution in AlPO4-5 crystals and earlier observed preferential orientation of this guest molecule in the host structure.
URI: 
ISSN: 0897-4756
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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