HgCdTe (MCT) Photovoltaic Detector

Ambient temperature, with anti-fringing technology

PV-5-AF1×1-TO39-NW-90 is uncooled IR photovoltaic detector based on sophisticated HgCdTe heterostructure for the best performance and stability.
In order to make this detector immune to unwanted optical fringing effects, VIGO developed anti-fringing technology (internal modification of substrate’s surface) and successfully applied it. This results in the fringing 10 – 40 times smaller compared to the standard IR detector.

Spectral response (Ta = 20°C, Vb = 0 mV)

Features

  • Anti-fringing technology applied
  • Significant fringing reduction for 2.1 - 4.4 µm spectral range
  • Large active area
  • Excellent linearity
  • No bias required
  • No 1/f noise

Applications

  • Gas detection, monitoring and analysis (CO, HF, NH3, C2H2, CH4, C2H6, HCl, H2CO, SO2, CO2, N2O, NOx)

Specification (Ta = 20°C, Vb = 0 mV)

Parameter
PV-5-AF1×1-TO39-NW-90
Active element material
epitaxial HgCdTe heterostructure
Cut-on wavelength λcut-on (10%) µm
2.1±0.2
Peak wavelength λpeak, µm
4.4±0.2
Cut-off wavelength λcut-off (10%) µm
≥5.3
Detectivity D*(λpeak), cm⋅Hz1/2/W
~1.45×109
Current responsivity Ripeak), A/W
~0.36
Time constant τ, ns
~570
Resistance R, Ω
~8
Active area A, mm×mm
AF1×1
Package
TO39
Acceptance angle, Φ
~90°
Window
none

Mechanical layout, mm

Dedicated preamplifier

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