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edr1c

  • 2 years ago

i'd just started my 1st year in E&E and i got a question like this in my basic electronic class: the photodetector is used to detect infrared of wavelength 1μm upwards. what type fo semiconductor material must be used to design the detector?

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  1. edr1c
    • 2 years ago
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    somehow i think we need to use E=hv? and f=vλ?

  2. CarlosGP
    • 2 years ago
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    For wavelengths 1-2.5 um the material is PbS, Lead(II) Sulfide

  3. edr1c
    • 2 years ago
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    how do your reach to that conclusion? we need to refer to any data sheet?

  4. CarlosGP
    • 2 years ago
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    check photodetectors and range of utilization for infrared

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