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Single Crystals
           
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Substrates for III-V nitride Film Depostition

Special single crystal substrates are available for deposition of III-V compounds for the development of special devices such as blue LEDs and LASERS.

Physical Properties
Material
Structure
Lattice
Const.
Å
a
Lattice
Const.
Å
c
Density
(g/cm3)
Melting
Point
° C
Thermal
Expansion
x 10-6/K°
Standard
Orientation
Std. Sizes
0.5 mm
thick
Al2O3
Hexagonal
4.758
12.991
3.97
2030
7.50
C-plane
10x10mm
1/0x1.0"
2"Φ
3"Φ
MgO
Cubic
4.216
3.58
2800
12.8
(100)
10x10mm
1x1"
2x2"
MgAl2O4
Cubic
8.083
3.60
2130
7.45
(111)
10x10mm
32mmΦ
1.5"Φ
ZnO
Hexagonal
3.252
5.313
5.605
1975
2.90
(0001)
10x10mm
20x20mm
SiC
Hexagonal
3.08
15.12
3.217
sublimes
10.3
6H
10x10mm
LiAlO2
(2)
Tetragonal
5.17
6.26
1700
(100)
10x10mm
15x20mm
InP
Cubic
5.869
1070
4.50
(100)
(111)
2.0"Φ
GaP
Cubic
5.451
1348
4.65
(100)
(111)
(311)
45mmΦ
GaAs
Cubic
5.653
1238
6.00
2.0"Φ
GaN (1)
Hexagonal
3.189
5.815
6.1
sublimes
5.59
NiAl
Cubic
2.880
1720
20mmΦ
LiGaO2
(2)
Orthohombic
5.4006
(b)
5.012
(c)
6.379
1600
(001)
10x10mm
1/0x1.0"
25mmΦ
50mmΦ
CdSe
>1350
Call
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Notes:
1. GaN is not available as a crystal (for reference only).
2. Not recommended for MOCVD because of low melting point.
Sizes and Orientations Available
Because each crystal is unique, maximum sizes and orientations available will vary. Please contact us for crystals for your specific reqirements.
Applications
Blue LEDs, LASERS
 		          
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           

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Marketech Intl, Inc.

  

192 Otto Street

  

Port Townsend, WA 98368

  
Tel: 360-379-6707  
Toll Free: 877-452-4910  
   
 

 

 

 

 

 

 

 

 

 

 

 
 
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