Chemical Vapor Transport, Crystal Growth, Thermodynamic and Fluid Dynamic Analysis of the Hgl−xCdxTe System

1981 ◽  
Vol 9 ◽  
Author(s):  
Heribert Wiedemeier ◽  
Dipankar Chandra
Keyword(s):  
Crystal Growth ◽  
Fluid Dynamic ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Phase System ◽  
X Ray Diffraction ◽  
Gaseous Species ◽  
Partial Pressures ◽  
Growth Properties

EXTENDED ABSTRACTThe chemical vapor transport and crystal growth properties of the Hgl−xCdxTe iodine system (x=0.2, 0.5 and 0.7) are investigated as a function of transport agent pressure and orientation of the density gradient with respect to the gravity vector to understand the effects of convection on mass transfer and crystal morphology. A thermodynamic analysis of the solid-gas phase system yielded the composition of the vapor and the partial pressures of the gaseous species as a function of temperature and total pressure to assist in the elucidation of the dominant transport mode. Optical and scanning electron microscopy, electron microprobe, chemical etching, X-ray diffraction and energy dispersive spectroscopy techniques were employed to examine the surface and bulk morphology and compositional homogeneity of single crystals obtained under different conditions.

scholarly journals Crystal Growth of the Quasi-2D Quarternary Compound AgCrP2S6 by Chemical Vapor Transport

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 500
Author(s):  
Sebastian Selter ◽  
Yuliia Shemerliuk ◽  
Bernd Büchner ◽  
Saicharan Aswartham
Keyword(s):  
Crystal Growth ◽  
Chemical Vapor ◽  
Growth Conditions ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
X Ray Diffraction ◽  
Monoclinic Symmetry ◽  
X Ray ◽  
Low Dimensional

We report optimized crystal growth conditions for the quarternary compound AgCrP2S6 by chemical vapor transport. Compositional and structural characterization of the obtained crystals were carried out by means of energy-dispersive X-ray spectroscopy and powder X-ray diffraction. AgCrP2S6 is structurally closely related to the M2P2S6 family, which contains several compounds that are under investigation as 2D magnets. As-grown crystals exhibit a plate-like, layered morphology as well as a hexagonal habitus. AgCrP2S6 crystallizes in monoclinic symmetry in the space group P2/a (No. 13). The successful growth of large high-quality single crystals paves the way for further investigations of low dimensional magnetism and its anisotropies in the future and may further allow for the manufacturing of few-layer (or even monolayer) samples by exfoliation.

Influence of oxygen atmosphere on the crystal growth of copper(II) oxide

1990 ◽  
Vol 5 (1) ◽  
pp. 53-56 ◽  
Author(s):  
Edward C. Milliken ◽  
James F. Cordaro
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Growth Process ◽  
Chemical Vapor ◽  
Single Crystal Growth ◽  
Oxygen Atmosphere ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Partial Pressures ◽  
Transport Technique

Single crystal growth of CuO, synthetic tenorite, was accomplished in oxygen atmosphere by the chemical vapor transport technique. We present the first systematic study of the growth of CuO in various partial pressures of oxygen. Crystals were grown using trace, 0.1, and 0.5 atm partial pressures of oxygen. The growth temperatures used were 820 and 865 °C. Typical dimensions of the crystals obtained were 1 × 2 × 0.25 mm. We have shown that the stoichiometry of single crystal CuO can be controlled during the growth process. The crystals exhibited cation deficient stoichiometry, Cu1−xO, with x increasing from less than 0.005 with no added oxygen, up to 0.05 with 0.5 atm O2 when grown at 865 °C.

Single crystal growth of CdSiAs2 by chemical vapor transport; its structure and electrical properties

1984 ◽  
Vol 67 (2) ◽  
pp. 185-194 ◽  
Author(s):  
M. Avirović ◽  
M. Lux-Steiner ◽  
U. Elrod ◽  
J. Hönigschmid ◽  
E. Bucher
Keyword(s):  
Crystal Growth ◽  
Electrical Properties ◽  
Single Crystal ◽  
Chemical Vapor ◽  
Single Crystal Growth ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Properties Of Zinc Selenide Grown By Chemical Vapor Transport And Its Application To Room-Temperature Radiation Detection

1997 ◽  
Vol 487 ◽  
Author(s):  
B. A. Brunett ◽  
J. E. Toney ◽  
H. Yoon ◽  
P. Rudolph ◽  
M. Schieber ◽  
...  
Keyword(s):  
Carrier Transport ◽  
Gamma Ray ◽  
Radiation Detection ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
X Ray Diffraction ◽  
Current Voltage ◽  
Transient Spectroscopy ◽  
Temperature Radiation

AbstractWe have characterized ZnSe material grown by chemical vapor transport in iodine using triple-axis X-ray diffraction (TAD), photo-induced current transient spectroscopy (PICTS), photoluminescence (PL), current-voltage measurements and gamma-ray spectroscopy. The material was found to have inadequate carrier transport for nuclear spectrometer use, but there was a discernible difference in performance between crystals which could be correlated with crystallinity as determined by the TAD rocking curves.

scholarly journals Crystal growth of Cu2ZnSnS4 solar cell absorber by chemical vapor transport with I2

2013 ◽  
Vol 364 ◽  
pp. 101-110 ◽  
Author(s):  
D. Colombara ◽  
S. Delsante ◽  
G. Borzone ◽  
J.M. Mitchels ◽  
K.C. Molloy ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Solar Cell ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Synthesis and Characterization of FeO+ Nanosheets

2013 ◽  
Vol 544 ◽  
pp. 148-151 ◽  
Author(s):  
Jun Guo ◽  
Cai Xia Li ◽  
Lin Zhang ◽  
Jin Feng Xia ◽  
Danyu Jiang ◽  
...  
Keyword(s):  
Colloidal Suspension ◽  
Chemical Vapor ◽  
Butyl Alcohol ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
X Ray Diffraction ◽  
X Ray ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron

The layered FeOCl has been synthesized from Fe2O3 and FeCl3 by chemical vapor transport technique at 380°C., and an intercalation of sodium benzoate into as-synthesized FeOCl was conduct. After the intercalation composites were sonicated for 4 h in butyl alcohol, the colloidal suspension of layered iron oxide nanosheets was obtained. The FeOCl and the intercalation composites were analyzed by powder X-ray diffraction (XRD). Transmission Electron Microscopy (TEM) was also used to characterize the morphologies of the FeO+ Nanosheets. Except to this, the selected area electron diffraction was also performed to examine the iron nanosheets.

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