期刊
IEEE ELECTRON DEVICE LETTERS
卷 44, 期 5, 页码 809-812出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2023.3258462
关键词
Zinc oxide; self-biased; photodetector; P3HT
A self-biased hybrid UV photodiode with Pt nanoparticles at ZnO/P3HT interface has been developed, improving barrier potential and various device parameters. The device showed high photosensitivity, photoresponsivity, and specific detectivity in the self-biased mode, with a shortened response time. This device has the potential to meet the demands of modern technologies.
In this work, a self-biased hybrid UV photodiode has been developed by introducing Pt nanoparticles at ZnO/P3HT interface which has increased barrier potential at the interface, thus significantly improving various device parameters such as ideality factor, selectivity, and rectification ratio and reduced the dark current by similar to 1 order. Further, the photosensitivity, photoresponsivity, and specific detectivity of the device in the self-biased mode were 46, 14.8 mA/W, and 1.2 x 10(12) Jones, respectively. Moreover, the response time of the device was shortened to 45 ms. Thus, the reported device has the potential to fulfill the demands of modern technologies where fast response speed and high UV photosensitivity, and low power consumption are prime requirements.
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