Crystal Research and Technology
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Wolfgang Neumann (Editor-in-Chief), Klaus-W. Benz (Consulting Editor)
Online ISSN: 1521-4079
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Recently Published Articles
- Engineering ZnO nanowire surfaces via a chemical method
Y. F. Zhu, D. H. Fan, G. H. Zhou and F. Gu
Article first published online: 28 JUL 2014 | DOI: 10.1002/crat.201400162
Porous nanowires with large surface area are advantageous for device applications. However, the synthesis of this kind of nanostructure has rarely been reported. In this paper, quasi-aligned ZnO nanowire arrays with porous surfaces were successfully fabricated via a facile chemical method. Time-dependent experiments have also been carried out to better understand the formation process of porous structure on the nanowire surface.
- Facile synthesis of hierarchical CuO nanostructures with enhanced photocatalytic activity
M. Villani, A.B. Alabi, N. Coppedè, D. Calestani, L. Lazzarini and A. Zappettini
Article first published online: 28 JUL 2014 | DOI: 10.1002/crat.201300409
A simple solution-based protocol to produce a highly efficient photocatalyst consisting of a 3D assembly of 2D nanostructures via one-pot synthesis is herein presented. A very high photocatalytic activity has been measured, higher than that of commercial TiO2 and among the best reported in literature for CuO.
- Present stage and future prospects of development of compressor material
T. Kitashima, K. S. Suresh and Y. Yamabe-Mitarai
Article first published online: 28 JUL 2014 | DOI: 10.1002/crat.201400156
Titanium alloys are attractive for use in the compressor of jet engines because of their high strength-to-density ratio. This study describes the development of high-temperature titanium alloys, mainly focusing on the effects of alloy composition and microstructure on mechanical properties. Titanium matrix composites and titanium aluminides have also been extensively studied for future application in high-pressure compressors. In addition, in this study, melting technology of titanium alloys has been introduced.
- Crystallization rate control for alkali halide crystal growth by the VGF technique with a skull layer
V. I. Taranyuk, A. V. Gektin and A. V. Kolesnikov
Article first published online: 24 JUL 2014 | DOI: 10.1002/crat.201400132
This work is devoted to an ability to use the melt level control for stabilization of crystallization rate during crystal growth by VGF technique with the skull layer. The electrocontact melt level gauge was used for 250×180×45 mm NaI crystal growth. It allows to fix crystallization rate and sustain this value during whole growth cycle due to the temperature gradient modification during the growth process.
- Selective growth of InAs quantum dots on GaAs driven by as kinetics
R. Magri, E. Placidi, F. Arciprete and F. Patella
Article first published online: 22 JUL 2014 | DOI: 10.1002/crat.201300426
In ACS Nano 7, 3868 (2013) we showed a selective growth of InAs Quantum Dots entirely due to the As component, usually believed having a minor role in the dot growth. In this paper we examine how the As flux direction and intensity influences the selective growth of InAs quantum dots and, through experiment and rate equations, find that the effect originates only from the small As flux gradient between the mound slopes and is not influenced substantially by the flux intensity.