Shockley Partial Dislocation-Induced Self-Rectified 1D Hydrogen Evolution Photocatalyst

2019 ◽  
Vol 11 (22) ◽  
pp. 20521-20527 ◽  
Author(s):  
Zhonghui Han ◽  
Weizhao Hong ◽  
Weinan Xing ◽  
Yidong Hu ◽  
Yansong Zhou ◽  
...  
2007 ◽  
Vol 105 (10) ◽  
pp. 1377-1383 ◽  
Author(s):  
Atsushi Mori ◽  
Yoshihisa Suzuki ◽  
Shin-Ichiro Yanagiya ◽  
Tsutomu Sawada ◽  
Kensaku Ito

Author(s):  
T. Yamashita ◽  
R. Sinclair

Recently, lattice resolution video-recording of dislocation motion in CdTe has been reported by Sinclair et al, using the Cambridge 500 keV microscope equipped with a TV camera. Phenomena such as the motion of Shockley partial dislocations and climb of Frank dislocations were recorded onto a video tape which has an exposure rate of 50 half-frames per second. An obvious extension of this work is to study the dislocation reactions. An example of such a reaction which was detected in CdTe is shown in Fig. 1. The micrographs were taken several seconds apart in a JEOL 200CX microscope, and they show dissociation of a Frank dislocation into a Shockley partial dislocation and a Lomer dislocation (ie., a sessile lock).


1993 ◽  
Vol 319 ◽  
Author(s):  
H. Tanaka ◽  
Masao Doyama

AbstractDislocations were created near the center of the surface (101) of copper small crystals whose surfaces are (111), (111), (101), (101), (121), and (121) by use of n-body atom potentials and molecular dynamics. At first, a Heidenreich-Shockley partial dislocation was created., As the partial dislocation proceeds, the partial dislocation and the surface was connected with a stacking fault until the next Heidenreich-Shockley partial dislocation was created at the surface.Just before the creation of a partial dislocation the stress was the highest.


1993 ◽  
Vol 319 ◽  
Author(s):  
H. Tanaka ◽  
Masao Doyama

AbstractDislocations were created near the center of the surface (101) of copper small crystals whose surfaces are (111), (111), (101), (101), (121), and (121) by use of n-body atom potentials and molecular dynamics. At first, a Heidenreich-Shockley partial dislocation was created., As the partial dislocation proceeds, the partial dislocation and the surface was connected with a stacking fault until the next Heidenreich-Shockley partial dislocation was created at the surface.Just before the creation of a partial dislocation the stress was the highest.


1997 ◽  
Vol 505 ◽  
Author(s):  
Masaodoyama ◽  
Yoshiaki Kogure ◽  
Tadatoshi Nozaki

ABSTRACTDislocations were created near the center of the surface (110) of copper small crystals whose surfaces are (111), (111), (110), (110), (112), and (112) by use of n-body atom potentials and molecular dynamics. At first, a Heidenreich-Shockley partial dislocation was created. As the partial dislocation proceeds, the partial dislocation and the surface was connected with a stacking fault until the next Heidenreich-Shockley partial dislocation was created at the surface.Just before the creation of a partial dislocation the stress was the highest. For larger crystals, forming a step on (110) plane was not enough and a shear was necessary to move dislocations.


2006 ◽  
Vol 40 (4-6) ◽  
pp. 458-463 ◽  
Author(s):  
I. Belabbas ◽  
G. Dimitrakopulos ◽  
J. Kioseoglou ◽  
A. Béré ◽  
J. Chen ◽  
...  

2005 ◽  
Vol 2 (6) ◽  
pp. 1998-2003 ◽  
Author(s):  
H. Idrissi ◽  
G. Regula ◽  
M. Lancin ◽  
J. Douin ◽  
B. Pichaud

2010 ◽  
Vol 25 (10) ◽  
pp. 1983-1991 ◽  
Author(s):  
J. Aufrecht ◽  
A. Leineweber ◽  
V. Duppel ◽  
E.J. Mittemeijer

Images of synchro-Shockley partial dislocation arrangements in the Laves phases NbCr2 and HfCr2 have been obtained by high-resolution transmission electron microscopy. The analysis of the stacking sequences around these arrangements revealed the role of the constituting partial dislocations in enabling the polytypic C14 → C36/6H phase transformation in both alloys. The synchro-Shockley partial dislocations occur in and move through the crystals mainly as dipoles of partials of opposite signs, leading to—as compared to isolated partials—strain fields of lesser extent. In NbCr2 a single, probably quenched synchro-Shockley partial dislocation dipole, consisting of two partials with Burgers vectors of opposite sign, was identified. The ordered passage of a series of this type of line defects brings about the C14 → C36 transformation. In HfCr2 a complex synchro-Shockley partial dislocation configuration was revealed. It can be regarded as an “antiphase boundary” between two C36 domains. It is likely that this defect structure had formed by impingement of two domains of C36 growing perpendicular to the stacking direction by glide of synchro-Shockley partial dislocation dipoles.


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