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Synthesis and X-ray responsivity of Zn0.75Cd0.25Te nanoribbons

Synthesis and X-ray responsivity of Zn0.75Cd0.25Te nanoribbons

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To reduce the size and to lower energy consumption are very important for the portable X-ray detector. It is clear that the nanodetector based on nanotechnology will be the future trend. The single-crystalline Zn0.75Cd0.25Te nanoribbons are synthesised by a two-step process, and the X-ray detectors from individual nanoribbon are fabricated. The X-ray detecting performances are carried out by using three kinds of X-ray source with different energy of 8.857, 9.659 and 11.564 KeV, respectively. The nanodetectors exhibit a high sensitivity, fast response speed, which are attributed to the high-aspect ratio, nearly perfect single-crystalline quality and the reduction of the recombination barrier in the ribbon. The remarkable X-ray responsivity implies that the Zn0.75Cd0.25Te nanoribbons are a very attractive candidate for application in X-ray nanodetectors at room temperature.

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