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gasb substrate
gasb substrate
gasb

GaSb Substrates

GaSb single crystals can be used as substrate materials because of their lattice constants matching the lattice constants of various ternary and quaternary, III-V compound solid solutions with band gaps in the 0.8~4.3um wide spectral range. The limited mobility of GaSb lattice is greater than that of GaAs, making it a potential application prospect in the manufacture of microwave devices. Growth methods include LEC, VGF and VBG.


OST Photonics offers high quality GaSb substrates for researchers and industries. There are three types of GaSb materials for you to choose from: undoped GaSb, N-type GaSb (Te doped) and P-type GaSb (Zn doped). Crystal size and thickness can be customized according to your requirements.


Application of GaSb Substrates


  • Optical communication

  • TPV cell

  • Infrared detectors

  • Infrared laser devices


Advantages of GaSb Substrates


  • Low power consumption

  • High electron mobility

  • Wide spectrum coverage

  • Adjustable band width


Ability of GaSb Substrates


  • Orientation:<100>, etc.

  • Dimension: 2”, 3”, 10x10mm, 10x5mm, 5x5mm, etc.

  • Thickness: 0.5mm, 0.6mm, etc.

  • Available items: wafers, substrates, blanks and customized optics


Specification and Properties of GaSb Substrates


Crystal Structure

Cubic

Lattice Constant

a=6.095Å

Melting Point

712 ℃

Density

5.614 g/cm3

Thermal Expansion

6.1x10^-6 /K

Thermal Conductivity

270 mW/cm.K at 300K

Doping

Undoped

Zn

Te

Conduct Type

P-type

P-type

N-type

Carrier Concentration

(1-2)x10^17 cm-3

(5-100) x10^17 cm-3

(1-20)x10^17 cm-3

Mobility

600-700 cm2/V.s

200-500 cm2/V.s

2000-3500 cm2/V.s

Dislocation Density

<1x10^4 cm-2

<1x10^4 cm-2

<1x10^4 cm-2

Orientation

<100>, etc.

Orientation Tolerance

±0.5° or better

Dimension

2”, 3”, 10x10mm, 10x5mm, 5x5mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.5mm, 0.6mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Surface Roughness

Ra<5Å
Atomic Particle Microscopy (AFM) test report can be provided.

Package

Class 100 clean bag, Class 1000 super clean room


Contact Us
Welcome your presence, you can send us an email, we will get in touch with you within 24 hours.
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460