2014
DOI: 10.1139/cjp-2013-0648
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High sensitivity photodetector made of amorphous selenium and diamond cold cathode

Abstract: In the present study, high-sensitivity photodetection has been demonstrated using an amorphous selenium (a-Se) based photodetector driven by nitrogen-doped diamond cold cathode. The emission current -applied voltage characteristics are compared between different lighting conditions, and their sensitivities are evaluated in terms of nominal quantum efficiency. The estimated nominal quantum efficiency was 10-40 for visible and up to 1000 for ultraviolet, proving a successful photodetection utilizing carrier mult… Show more

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