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InAs/InAsSb Photovoltaic Detectors

Photovoltaic detectors (photodiodes) in which the semiconductor layer is made of InAs or InAsSb materials. Absorbed photons produce charge carriers that are collected at the ciodes have complex current voltage characteristics. The devices can operate either at flicker-free zero bias or with reverse voltage.

These detectors are cadmium and mercury free. As a result, the detectors comply with the RoHS directive and can be used in the consumer market.

NEW InAs and InAsSb IR detectors

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Name

Active element material

Cooling

Immersion

Active area

peak_wavelength

?

λpeak, μm

Cut-off wavelength (10%)

?

λcut-off, μm

Current responsivity

?

Ripeak), A/W

Detectivity

?

D* (λpeak, f = 20 kHz), cm⋅Hz1/2/W

Time constant

?

τ, ns

Package

Window

Datasheet

Material

InAs

Cooling

Uncooled

Immersion

no

Active area

1×1

peak_wavelength

3.1

Cut-off wavelength cut-off

3.5

responsivity

0.9

Detectivity

7.0×10\(^{9}\)

Time constant

35

Package

TO39

Window

no

Material

InAs

Cooling

Uncooled

Immersion

no

Active area

d1.2

peak_wavelength

2.9

Cut-off wavelength cut-off

3.6

responsivity

0.6

Detectivity

5.0×10\(^{9}\)

Time constant

35

Package

SMD

Window

pAl2O3

Material

InAsSb

Cooling

Uncooled

Immersion

yes

Active area

1×1

peak_wavelength

4.5

Cut-off wavelength cut-off

5.3

responsivity

1.2

Detectivity

5.0×10\(^{9}\)

Time constant

15

Package

TO39

Window

no

Material

InAsSb

Cooling

Uncooled

Immersion

no

Active area

1×1

peak_wavelength

4.0

Cut-off wavelength cut-off

5.5

responsivity

0.16

Detectivity

8.6×10\(^{9}\)

Time constant

40

Package

TO39

Window

pSiAR

Material

InAsSb

Cooling

Uncooled

Immersion

no

Active area

1×1

peak_wavelength

4.3

Cut-off wavelength cut-off

6.6

responsivity

0.18

Detectivity

4.3×10\(^{9}\)

Time constant

48

Package

TO39

Window

pSiAR

Material

InAsSb

Cooling

Uncooled

Immersion

yes

Active area

1×1

peak_wavelength

7.1

Cut-off wavelength cut-off

12.0

responsivity

0.14

Detectivity

7.7×10\(^{8}\)

Time constant

1.65

Package

TO39

Window

no

Material

InAsSb

Cooling

Four-stage TE cooled

Immersion

yes

Active area

1×1

peak_wavelength

6.7

Cut-off wavelength cut-off

11.3

responsivity

0.55

Detectivity

1.0×10\(^{10}\)

Time constant

3

Package

TO8

Window

wZnSeAR

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