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A type of metal-semiconductor-metal (MSM) photodetector based on PbTe single-crystalline nanowires was prepared. I–V characteristics of the photodetector in the temperature range of 77–300K were studied. Little dark current was achieved in MSM PbTe nanowire photodetector at low bias voltages due to the formation of back to back Schottky junctions between the PbTe nanowires and Au electrodes. The influences...
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