Alzahrani, Hanan and Sulaiman, Khaulah and Mahmoud, Alaa Y. and Bahabry, Rabab R. (2021) Ultrasensitive self-powered UV photodetector based on a novel p-n heterojunction of solution-processable organic semiconductors. Synthetic Metals, 278. ISSN 0379-6779, DOI https://doi.org/10.1016/j.synthmet.2021.116830.
Full text not available from this repository.Abstract
This work reports a highly sensitive self-powered ultraviolet photodetector, which is based on the active layer of NPD:Alq3 with different Alq3 contents. All solution-processed technique was utilized to fabricate the active layers of the devices to achieve an optimized system that exhibits highly sensitive and stable photodetector under self-powered operation mode. The values of photosensitivity, responsivity, and detectivity of the photodiodes at zero-bias were estimated at 1.30 x 105, 1.07 mA/W, 1.04 x 1011 Jones, respectively. The rise and decay times of the optimized device were estimated at 0.34 s and 0.28 s, respectively. For practical application of the device sensing efficiency, the optimal load line of self-powered UV photodetector to deliver the maximum power was estimated of an internal impedence of 0.579 M Omega. In conclusion, the high sensitivity, good stability, and fast response/recovery speed of the self-powered UV photodetector make the devices applicable to resolve some of the current issues in UV detection.
| Item Type: | Article |
|---|---|
| Funders: | University of Jeddah Saudi Arabia (UJ-02-017-ICGR) |
| Uncontrolled Keywords: | Self-powered; Binary mixture; Small molecules; Response; recovery; Photosensitivity; Organic-based ultraviolet photodetector |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 16 Apr 2022 02:17 |
| Last Modified: | 16 Apr 2022 02:17 |
| URI: | http://eprints.um.edu.my/id/eprint/26721 |
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