Theoretical Analysis and Experimental Verification of Triangular Fracture Defects of MgO Single Crystal Substrate in Lapping or Polishing Process

2007 ◽  
pp. 739-744
Author(s):  
Ke Wang ◽  
Ren Ke Kang ◽  
Zhu Ji Jin ◽  
Dong Ming Guo
Keyword(s):  
Theoretical Analysis ◽  
Single Crystal ◽  
Experimental Verification ◽  
Single Crystal Substrate ◽  
Polishing Process ◽  
Crystal Substrate

An Experimental Study of the Polishing Process for MgO Single Crystal Substrate

2007 ◽  
Vol 329 ◽  
pp. 225-230 ◽  
Author(s):  
Ke Wang ◽  
Ren Ke Kang ◽  
Zhu Ji Jin ◽  
Ning Hui Wang
Keyword(s):  
Surface Roughness ◽  
Single Crystal ◽  
Removal Rate ◽  
Structural Characteristics ◽  
Chemical Properties ◽  
Single Crystal Substrate ◽  
Polishing Process ◽  
Crystal Substrate ◽  
Substrate Surfaces ◽  
Polishing Efficiency

In order to obtain ultra-smooth and damage free substrate surfaces for MgO single-crystal substrate with high polishing efficiency, an experimental investigation based on systemically designed polishing experiments are presented and discussed. Considering the structural characteristics and chemical properties of the MgO single crystal, the experiments use a polishing slurry containing SiO2 abrasives so that the process is performed under a combination of mechanical and chemical actions. The effects of the polishing process parameters, such as polishing pressure, rotational speed of polishing plate, and the flow rate and concentration of the polishing slurry, on the surface roughness and material removal rate (MRR) are analyzed. Finally, a recommendation is made for selecting the appropriate polishing parameters for MgO single crystal substrate, based on which a surface roughness of 0.3nm can be achieved on the MgO substrate in 20min of polishing time.

Microstructure and enhanced in-plane ferroelectricity of Ba0.7Sr0.3TiO3 thin films grown on MgAl2O4 (001) single-crystal substrate

2006 ◽  
Vol 89 (23) ◽  
pp. 232906 ◽  
Author(s):  
X. Y. Zhou ◽  
T. Heindl ◽  
G. K. H. Pang ◽  
J. Miao ◽  
R. K. Zheng ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystal ◽  
Single Crystal Substrate ◽  
Crystal Substrate

Effect of r-Al2O3 Single-Crystal Substrate on Growth of Ti1– xVxO2 Particles under Hydrothermal Conditions

2020 ◽  
Vol 65 (3) ◽  
pp. 299-304
Author(s):  
O. N. Makarevich ◽  
A. V. Ivanov ◽  
A. I. Gavrilov ◽  
A. M. Makarevich ◽  
O. V. Boytsova
Keyword(s):  
Single Crystal ◽  
Single Crystal Substrate ◽  
Hydrothermal Conditions ◽  
Crystal Substrate

scholarly journals Donor/Acceptor Photovoltaic Cells Fabricated on p-Doped Organic Single-Crystal Substrates

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2068 ◽  
Author(s):  
Yusuke Yabara ◽  
Seiichiro Izawa ◽  
Masahiro Hiramoto
Keyword(s):  
Single Crystal ◽  
Photovoltaic Cells ◽  
Photocurrent Density ◽  
Iron Chloride ◽  
Single Crystal Substrate ◽  
Organic Single Crystal ◽  
Crystal Substrate ◽  
Donor Acceptor ◽  
Doping Technique ◽  
P Type

In this study, the operation of donor/acceptor photovoltaic cells fabricated on homoepitaxially grown p-doped rubrene single-crystal substrates is demonstrated. The photocurrent density is dominated by the sheet conductivity (σ□) of the p-type single-crystal layer doped to 100 ppm with an iron chloride (Fe2Cl6) acceptor. A 65 μm thick p-type rubrene single-crystal substrate is expected to be required for a photocurrent density of 20 mA·cm−2. An entire bulk doping technique for rubrene single crystals is indispensable for the fabrication of practical organic single-crystal solar cells.

Sign in / Sign up

Export Citation Format

Share Document