DefectsGROWTHSingle crystal growth by the edge-defined film-fed growth method (EFG) has been commercially practiced for over 40 years. State of the art sapphire crystals can be over 300 mm wide, 10 mm thick and 1 m long. In addition to well-known defects such as bubble inclusions and ...
single crystalsdefectsThe martensitic transformation is often accompanied by the production of defects either in the austenite, the martensite or in both phases. An interesting example of this is the generation of bulk dislocations and surface defects after pseudoelastic cycling in Cu-Zn-Al single ...
In subject area: Physics and Astronomy Surface defects are imperfections such as surface roughness, pores, and coarse grains that can lead to material failure by initiating cracks, reducing strength, ductility, and fatigue life. These defects are influenced by machining parameters and can be mitigated...
Dopant compensation in alloyed CH3NH3PbBr3−xClx perovskite single crystals for gamma-ray spectroscopy. Nat. Mater. 16, 826–833 (2017). ADS CAS PubMed Google Scholar Feng, Y. et al. Low defects density CsPbBr3 single crystals grown by an additive assisted method for gamma-ray detection...
A Study on Thermally Induced Microdefects in Czochralski-Grown Silicon Crystals : Dependence on Annealing Temperature and Starting Materials Thermally induced microdefects in Czochralski-grown (CZ) silicon crystals have been investigated by both TEM and IR absorption techniques. Dependence of th... Y ...
Zigzag defects in surface-stabilized ferroelectric liquid crystals (SSFLCs) originate from the structural transformation from C1 to C2 chevrons during the cooling process. This transformation occurs so as to accommodate the increasing tilt angle of the FLC under the constraint of the surface anchoring....
Recently, surface defects in Cu2O were investigated by scanning tunneling microscopy and spectroscopy combined with DFT calculations35. The authors observed O-vacancies and predicted a mutual repulsion, as they carry a partial positive charge. Also the increase in downward band bending that we observe...
on 2-D photonic crystals where the focus is on surface-emitting-type channel-drop filtering devices utilizing single defects in 2-D photonic crystal slabs... S Noda,M Imada,M Okano,... - 《IEEE Journal of Quantum Electronics》 被引量: 156发表: 2002年 Photonic-crystal vertical-cavity surfac...
7.2.3.3Surface defects Structural defectsplay an important role in influencing the chemical and electronic properties of TiO2surfaces[175,566,792]. It is expected thatdefect siteswill also influence surface photochemistry on TiO2, although the field has not yet extensively reported such correlations. ...
, 1998). More recently, alternate sources for TDs, namely, planar defects in the GaN buffer layer and point defects incorporated during growth, have been suggested (Narayanan et al., 2002). The stacking faults in the nucleation layer were shown to be the major source of TDs. They suggested...