Calculation of the impurity distribution for diffusion in a solid crystal with inhomogeneous layers

1977 ◽  
Vol 20 (10) ◽  
pp. 1340-1344
Author(s):  
Yu. F. Blinov ◽  
A. G. Zakharov ◽  
Yu. I. Molchanov ◽  
D. A. Sechenov
Keyword(s):  
Impurity Distribution ◽  
Solid Crystal

Sector growth and symmetry of (F,OH) apatite from the Asio mine, Japan

1994 ◽  
Vol 58 (391) ◽  
pp. 307-314 ◽  
Author(s):  
Mizuhiko Akizuki ◽  
Hirotugu Nisidoh ◽  
Yasuhiro Kudoh ◽  
Tomohiro Watanabe ◽  
Kazuo Kurata
Keyword(s):  
Optical Properties ◽  
Crystal Growth ◽  
Electron Diffraction ◽  
Chemical Analysis ◽  
Growth Surface ◽  
Complete Disappearance ◽  
X Ray ◽  
Solid Crystal ◽  
Wet Chemical ◽  
Growth Features

AbstractA study of apatite crystals from the Asio mine, Japan, showed sectoral texture related to the growth of the crystal, and with optically biaxial properties within the sectors. Wet chemical analysis gave a composition Ca5(PO4)3(F0.64,OH0.38,Cl0.01)1.03 for the specimen.Additional diffraction spots were not observed in precession and oscillation X-ray photographs and electron diffraction photographs. Since the internal textures correlate with the surface growth features, it is suggested that the internal textures and the unusual optical properties were produced during nonequilibrium crystal growth. The fluorine/hydroxyl sites in hexagonal apatite are symmetrically equivalent in the solid crystal but, at a growth surface, this equivalence may be lost, resulting in a reduction of crystal symmetry. Heating of the apatite to about 850°C results in the almost complete disappearance of the optical anomalies due to disordering, which may be related to the loss of hydroxyl from the crystal.

Growth of Single Crystalline ZnO Nanotubes and Nanosquids

2007 ◽  
Vol 1057 ◽  
Author(s):  
Abhishek Prasad ◽  
Samuel Mensah ◽  
Jiesheng Wang ◽  
Archana Pandey ◽  
Yoke Khin Yap
Keyword(s):  
Vapor Deposition ◽  
Self Assembly ◽  
Chemical Vapor ◽  
Zno Nanostructures ◽  
X Ray ◽  
Thermal Chemical Vapor Deposition ◽  
Crystal Growth Mechanism ◽  
Zno Nanotubes ◽  
Solid Crystal

ABSTRACTThe growth of ZnO nanotubes and nanosquids is obtained by conventional thermal chemical vapor deposition (CVD) without the use of catalysts or templates. Characterization of these ZnO nanostructures was conducted by X-ray powder diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Raman spectroscopy, and photoluminescence (PL). Results indicate that these ZnO nanostructures maintain the crystalline structures of the bulk wurtzite ZnO crystals. Our results show that rapid cooling can be used to induce the formation of ZnO nanotubes and ZnO nanosquids. The self-assembly of these novel ZnO nanostructures are guided by the theory of nucleation and the vapor-solid crystal growth mechanism.

Solid–Solid Crystal Transitions (δ to α) in Poly(hexamethylene carbonate) and Poly(octamethylene carbonate)

2021 ◽  
Author(s):  
Ricardo A. Pérez-Camargo ◽  
Guoming Liu ◽  
Leire Meabe ◽  
Ying Zhao ◽  
Haritz Sardon ◽  
...  
Keyword(s):  
Solid Crystal

Depth profile analysis of solar cell silicon by GD-MS

2014 ◽  
Vol 29 (11) ◽  
pp. 2072-2077 ◽  
Author(s):  
M. Di Sabatino ◽  
C. Modanese ◽  
L. Arnberg
Keyword(s):  
Solar Cell ◽  
Depth Profile ◽  
Profile Analysis ◽  
Depth Resolution ◽  
Impurity Distribution ◽  
Concentration Profiles ◽  
Good Sensitivity ◽  
Transition Elements ◽  
Depth Profile Analysis

Comparison of SIMS (top) and GD-MS (bottom) analyses on sample R6-2b (implanted B). dc HR-GD-MS can be used for depth profile analysis of impurities in PV Si with good sensitivity and a depth resolution of 0.5 μm. Concentration profiles of samples contaminated with B, P and Ti agreed well with implanted levels. For fast diffusing transition elements, e.g. Fe and Cu, different impurity distribution mechanisms occur. This should be taken into account when analysing these impurities.

Interpretation of the impurity distribution in the divertor during divertor plate biasing using the DIVIMP code

2000 ◽  
Vol 278 (1) ◽  
pp. 111-116 ◽  
Author(s):  
E Haddad ◽  
F Meo ◽  
R Marchand ◽  
G Ratel ◽  
B.L Stansfield ◽  
...  
Keyword(s):  
Impurity Distribution ◽  
Divertor Plate

scholarly journals Preliminary Assesments of Solid Crystal Suspensions Using Nonlinearmicroscopy

2011 ◽  
Author(s):  
Markus Thommes ◽  
Herman Offerhaus ◽  
Martin Jurna ◽  
Elena Reitz
Keyword(s):  
Solid Crystal

scholarly journals Measurement and simulation of impurity distribution in the opposite trench sidewall implanted by reflection.

Hyomen Kagaku ◽  
1990 ◽  
Vol 11 (3) ◽  
pp. 183-188
Author(s):  
Kayoko TAMURA ◽  
Hisashi OGAWA ◽  
Genshu FUSE ◽  
Hiroshi IWASAKI
Keyword(s):  
Impurity Distribution
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