Cover Feature: Synthesis and Assembly of Zinc Oxide Microcrystals by a Low‐Temperature Dissolution–Reprecipitation Process: Lessons Learned About Twin Formation in Heterogeneous Reactions (Chem. Eur. J. 42/2020)

Conversion of cobalt‐doped layered zinc acetate into zinc oxide: Twinning is an often‐observed process during crystallization or mineralization of ZnO. However, if minor Co doping of a precursor is allowed, a twin free formation of highly regular hexagonal platelets of ZnO microcrystals displaying p...

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Published inChemistry : a European journal Vol. 26; no. 42; p. 9037
Main Authors Hoffmann, Rudolf C., Trapp, Maximilian, Erdem, Emre, Kratzer, Markus, Teichert, Christian, Kleebe, Hans‐Joachim, Schneider, Jörg J.
Format Journal Article
LanguageEnglish
Published 27.07.2020
Subjects
cobalt
crystallization
doping
Langmuir–Blodgett films
mineralization
zinc oxide
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Summary:Conversion of cobalt‐doped layered zinc acetate into zinc oxide: Twinning is an often‐observed process during crystallization or mineralization of ZnO. However, if minor Co doping of a precursor is allowed, a twin free formation of highly regular hexagonal platelets of ZnO microcrystals displaying piezoelectric behavior is observed. Tessellation of these crystals by the Langmuir–Blodgett technique using n‐butanol is possible, albeit only over small areas, if the surface is covered with a polyelectrolyte prior to deposition. This accounts for a subtle charge‐mediated orientation of these crystals on the substrate. More information can be found in the Full Paper by J. J. Schneider et al. on page 9319.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.202001562