| Autor: |
Xiaoling Ye, Xiaoxiao Zheng, Lei Han, Yu Sun, Liang Wang, Ziheng Li, Wencheng Liu, Benqing Liu, Nan Han, Safia Khan, Syed Hassan Mujtaba Jafri, Mingyang Wang, Yafei Ning, Hu Li |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1943-0655 |
| DOI: |
10.1109/JPHOT.2024.3381440 |
| Popis: |
Self-powered photodetectors which operate without external power sources hold immense promise in future photodetection systems. To achieve high-performance self-powered optoelectronic devices, efficient electron-hole pair separation is critical to generate high photocurrents. In this work, we successfully synthesized semiconducting graphene nanoribbons (GNRs) with a direct bandgap of 1.80 eV and employed them to construct a high-performance GNR/Al2O3/IGZO heterostructure photodetector. The built-in electric field in the heterojunctions enables this photodetector to exhibit remarkable performance, showing a responsivity of up to 68 mA/W, a detectivity of 8.34 × 1010 Jones, and rapid response times of 21/20 ms at zero bias. Furthermore, the photodetector features a wide spectral detection range of 405 to 1550 nm. These results highlight the promising potential of GNR/IGZO p-n heterojunction-based self-powered photodetectors in optoelectronic applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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