PbSe detector PB series

opticalsemiconductorphotoelectric

PbSe Detectors Polycrystalline lead selenide (PbSe) is a standard semiconductor detector with a sensitivity of between 1 µm and 5.2 µm. Description The resistance of photoconductive detectors depends on the incident light. PbSe has a particularly strong inner photoelectric effect: When infrared light reaches the lead selenide detector, the resistance is reduced. The detectors can be used uncooled at a wavelength of up to 4.7 µm. At room temperature, they exhibit a detectivity D* of greater than 1010. At low temperatures, they achieve an even higher performance level; in addition, the wavelength shifts to 5.2 µm. PbSe photodetectors feature a good price-to-performance ratio at a high sensitivity and a good time constant.