Liang, Haoqi and Cui, Jiupeng and Yu, Zhihao and Sun, Huabin and Wei, Heming and Zakaria, Rozalina and Li, Binhong and Wu, Jie and Xu, Yong and Tan, Chee Leong (2022) High performance ultraviolet photodiode based on thin DPPT-TT donor-acceptor organic polymer. Applied Physics Letters, 121 (20). ISSN 0003-6951, DOI https://doi.org/10.1063/5.0123705.
Full text not available from this repository.Abstract
A high-performance ultraviolet photodetector based on a thin layer DPPT-TT organic material is experimentally demonstrated. The high absorption of DPPT-TT in the ultraviolet band is attributed to the foundation for a high-performance ultraviolet detector. The device's responsivity can be improved by adequately designing the hole-blocking layer HfO2 and the stepped structure at the bottom contact. Due to the self-filtering and optical trapping structure, the device achieves external quantum efficiency above 100%, even with a thin absorption layer (around 50 nm). The maximum spectral responsivity of the device is 383 A/W, and the corresponding maximum specific detection rate is about 2.79 x 10(12) at a bias voltage of 0.5 V. Our results advocate that the thin organic ultraviolet photodetector promises excellent potential in low-cost ultraviolet-visible light detection and imaging applications. Published under an exclusive license by AIP Publishing.
| Item Type: | Article |
|---|---|
| Funders: | National Natural Science Foundation of China (NSFC) [52105369], National Natural Science Foundation of China (NSFC) [61974070], National Natural Science Foundation of China (NSFC) [20KJB460008], Natural Science Foundation of Jiangsu Province [BK20190725], NUPTSF [NY220066], Guangdong Province Research and Development in Key Fields from Guangdong Greater Bay Area Institute of Integrated Circuit and System 2021B0101280002, Guangzhou City Research and Development Program in Key Field [20210302001] |
| Uncontrolled Keywords: | LAYER; PHOTODETECTOR; SEMICONDUCTOR |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms Koh Ai Peng |
| Date Deposited: | 25 Oct 2024 08:24 |
| Last Modified: | 15 Nov 2024 04:12 |
| URI: | http://eprints.um.edu.my/id/eprint/46169 |
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