A novel self-powered photodiode based on solution-processed organic TPD: Alq3 active layer

Basir, Amirah and Alzahrani, Hanan and Sulaiman, Khaulah and Muhammadsharif, Fahmi F. and Abdullah, Shahino Mah and Mahmoud, Alaa Yousri and Bahabry, Rabab Riyad and Alsoufi, Mohammad S. and Bawazeer, Tahani M. and Abdul Sani, Siti Fairus (2021) A novel self-powered photodiode based on solution-processed organic TPD: Alq3 active layer. Materials Science in Semiconductor Processing, 131. ISSN 1369-8001, DOI https://doi.org/10.1016/j.mssp.2021.105886.

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Herein, we report a novel self-powered photodiode, which is based on all solution-processed active layer made of bulk heterojunction of TPD:Alq3. The photodiodes can be utilized for the detection of ultraviolet (UV) radiation in a self-powered mode without the need for an external power supply. The optimized photodiode with TPD:Alq3 (1:2) active layer presented a sensitivity, responsivity and detectivity of 1.76 x 103, 5.22 x 10-4 A/W and 3.11 x 1010 Jones, respectively at zero biased mode under 365 nm UV light. We proposed a new approach of utilizing impedance matching to deliver the maximum power of photodiodes to the external load. Nevertheless, with a tool of minimized impedance, one can nearly get the full functionality of the photodiode at zero biased volt, but with zero power delivery to the tool. The performance of TPD:Alq3 based photodiodes outperformed that of photodiodes reported in literature.

Item Type: Article
Funders: University of Jeddah, Saudi Arabia[UJ-02-017-ICGR], Islamic Development Bank under IDB Merit Scholarship Program
Uncontrolled Keywords: Photodiode;Self-powered;Maximum power;Heterojunction; Solution-processed;TPD;Alq3
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science
Depositing User: Ms Zaharah Ramly
Date Deposited: 12 Sep 2022 07:07
Last Modified: 12 Sep 2022 07:07
URI: http://eprints.um.edu.my/id/eprint/34328

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