Crystal Research and Technology
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Wolfgang Neumann (Editor-in-Chief), Klaus-W. Benz (Consulting Editor)
Online ISSN: 1521-4079
New Cover design and article layouts
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Recently Published Articles
- Influence of oxidization temperature on Zn(O,S) films deposited by electron beam evaporation
Chao Chen, Shuying Cheng, Hong Zhang, Haifang Zhou and Hongjie Jia
Article first published online: 4 MAY 2016 | DOI: 10.1002/crat.201600023
Zn(O,S) films were fabricated by oxidizing ZnS thin films deposited by electron beam evaporation method. Experimental results show that, when the oxidizing temperature of the Zn(O,S) was 400℃, the optical band gap and the resistivity of Zn(O,S) thin film are 3.36 eV and 3.22 × 103 Ω·cm, respectively, which was suitable for the buffer layers of the solar cells.
- Metastable zone width and nucleation threshold of aluminium hydroxyfluoride hydrate (pages 265–275)
Ubong Ntuk and Karen Steel
Article first published online: 14 APR 2016 | DOI: 10.1002/crat.201500294
The metastable zone width of aluminium hydroxyfluoride hydrate is considered. From the results, the solutions are saturated at pH 3.0 ± 0.3 and remain metastable until a nucleation threshold is reached at pH 5.0 ± 0.3. The pH profile of the crystallizing solution is similar to that of acid/base titration curves and is found to be a quick and accurate method of estimating the metastable limits.
- Total pressure-controlled PVT SiC growth for polytype stability during using 2D nucleation theory
S. Araki, B. Gao, S. Nishizawa, S. Nakano and K. Kakimoto
Article first published online: 9 APR 2016 | DOI: 10.1002/crat.201500344
A total pressure-controlled physical vapor transport growth method that stabilizes SiC polytype is proposed. Supersaturation varied as a function of the pressure inside the furnace. Therefore, modification of the pressure as a function of growth time allowed for constant supersaturation during growth. Calculated supersaturation distributions in the right half of the grown crystal when pressure uncontrolled (a) and pressure controlled (b) during crystal growth.
- Gas-phase synthesis of Fe-Bi metastable and dumbbell particles
C. Gökhan Ünlü, Zi-An Li, M. Acet and M. Farle
Article first published online: 9 APR 2016 | DOI: 10.1002/crat.201500329
Fe-Bi nanoparticles were prepared in the gas-phase by DC magnetron sputtering and in-flight annealing. High-resolution microscopy studies show that primary particles produced without in-flight annealing are spherical with a diameter of about 50 nm. Particles sintered at 773 K acquire a dumbbell structure with Fe-FeO and Bi sections.
- Linear optical properties and Raman spectroscopy of natural fluorapatite (pages 282–289)
Petra Becker, Eugen Libowitzky, Reiner Kleinschrodt and Ladislav Bohatý
Article first published online: 5 APR 2016 | DOI: 10.1002/crat.201500341
Precision refractive indices and their dispersion in the visible and near IR range, thermal expansion anisotropy and temperature dependence and results of polarized Raman spectroscopy of fluorapatite are reported using the example of natural gem-quality crystals from Durango, Mexico. The suitability of fluorapatite as a χ(3) nonlinear optical material is discussed.