Osram Laboratory Reports 142 lm/W Efficiency Record for Warm White LED Light Source
March 15, 2011…Osram Opto Semiconductors reports that it has set a new laboratory record of 142 lm/W for the efficiency of a warm white LED light source. The LED with a correlated [...]
2012-03-06meta-author
Growth Mechanism of GaAs Microdisk Structures by Area-Selective Epitaxy Using Migration-Enhanced Epitaxy
We have carried out area-selective epitaxy of GaAs microdisk structures on a SiO2-masked GaAs substrate by migration-enhanced epitaxy. We have successfully grown “damage-free” disks at 590 °C. It is found that, for the [...]
2018-09-20meta-author
Highlights
•GaSb p–i–n diodes were grown on Si and GaAs using interfacial misfit (IMF) arrays.
•Transmission electron microscopy images revealed arrays of 90° misfit dislocations.
•Threading dislocation densities of around View the MathML source were found in each case.
•Lower dark currents and higher quantum efficiency was found [...]
PAM XIAMEN offers 1″ Diameter Wafer.
1″ Diameter Wafer
Ge Wafer Undoped, 1″ dia x 0.5 mm , 1SP(100) R:>45 Ohm.cm
Ge Wafer (100) Undoped, 1″ dia x 0.5 mm , 2SP,R:>50 ohm.cm
Ge Wafer (110) Undoped, 1″ dia x 0.5 mm , 1SP,R:>50 [...]
2019-04-23meta-author
PAM XIAMEN offers BATIO3 BTO BARIUM TITANATE CRYSTAL SUBSTRATES.
Physical Parameters
Crystal structure
Tetragonal, tP5, P4mm, No. 99
Growth method
Top seeded solution method
Unit cell constant
a=3.995 Å
Melt point (℃)
1,625 °C (2,957 °F; 1,898 K)
Density (g/cm3)
6.02
Hardness (mohs)
6-6.5
Thermal expansion(/℃)
9.4×10-6
Dielectric constants
ea = 3700, ec = 135 (unclamped)
ea = 2400, e c = 60 (clamped)
Chemical stability
Insoluble in water
Transmission wavelength
0.45 ~ 6.30 mm
Size
10×3m, 10×5m, 10×10mm, 15×15mm, [...]
2019-03-11meta-author
PAM XIAMEN offers 3″FZ Prime Silicon Wafer Thickness: 350±15um.
3″ Si epi-ready wafer
Si wafer
FZ
Diameter: 76mm
Thickness: 350±15um
Dopant: P
Orientation: (100)
Resistivity: 500-1000 Ohm*cm
Double side polished, epi-ready
laser mark with numbering from N1k- 001 to NN1k- 200 for alll 200pcs [...]
2019-07-03meta-author