Cadmium Sulfide (CdS)

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Cadmium Sulfide (Cds) Substrate Dimensions in Stock

The following specs are available for immediate delivery.

5mm square cadmium sulfide cds substrates
CdS (0001) 5mm X 5mm x 0.5mm SSP

cadmium sulfide cds 5mm wafers
CdS (0001) 5mm x 5mm x1.0mm <1 ohm-cm DSP (60/40)

cadmium sulfide 10mm square wafers
CdS (0001) 10mm x 10mm x 0.5 mm, SSP R:10^3-10^5 ohm.cm

cadmium sulfide 10mm square wafers
CdS (0001) 10mm x 10mm x 0.5mm DSP

cadmium sulfide 10mm square wafers
CdS (0001), 10mm x 10mm x 1.0mm <1 ohm-cm DSP (60/40)
cadmium sulfide 10mm square wafers
CdS (0001) N type 10mm x 10mm x 1.0mm >1E6 ohm-cm DSP
cadmium sulfide 25mm diameter
CdS (0001) N type 25.4 mm x 1.0 mm >1E6ohm-cm DSP (60/40)
cadmium sulfide 25mm diameter
CdS (0001) N type, 38.1mm x 1.0mm R>10^6 ohm-cm DSP (60/40)
cadmium sulfide 25mm diameter
CdS (0001) N type 38.1mm x 1.0mm <1 ohm-cm DSP (60/40)

 

 

What is The Electron Density of Cadmium Sulfide (CdS) Wafer

A researcher recently requested the following CdS Wafer spec.

I want buy CdS (0001), 10x10x1.0 mm, resistivities: <1 ohm-cm, DSP (60/40) CdS (0001), N type, 10x10x1.0 mm, Resistivity: >1E6 ohm-cm, DSP could you tell me ,what is it means DSP(60/40) and provide the doping material, the doping density?

UniversityWafer, Inc. Quoted:

We can supply the following:
Material: CdS - High resistivity >1E6 ohm-cm
Size : 10 x 10 x 1 mm
Surface: two sides polished 60/40 (Scr/Dig)
Surface roughness : <= 10 A
Orientation : <0001>+/-0.5 degree

Material: CdS - Low resistivity <1 ohm-cm
Size : 10 x 10 x 1 mm
Surface : two sides polished 60/40 (Scr/Dig)
Surface roughness : <= 10 A
Orientation : <0001>+/-0.5 degree

Research replies:

Can you provide the electron density of CdS wafer , the name of the doped material and the concentration of doping?

Answer

High-resistivity CdS is undoped. It has high (over 10^10 Ohm*cm) specific resistivity, hence the exact measurement of electron density is difficult. It was estimated as (approximately) 10^16 cm^-3.

Low-resistivity CdS is nominally undoped. The cause of low resistivity is a deviation of stoichiometry towards an excess of Cd. The electron density is about 1*10^17 - 2*10^17 cm^-3.