High Performance Self-Powered Photodetectors Based on Graphene Nanoribbons/Al2O3/InGaZnO Heterojunctions
| العنوان: | High Performance Self-Powered Photodetectors Based on Graphene Nanoribbons/Al2O3/InGaZnO Heterojunctions |
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| المؤلفون: | Ye, Xiaoling, Zheng, Xiaoxiao, Han, Lei, Sun, Yu, Wang, Liang, Li, Ziheng, Liu, Wencheng, Liu, Benqing, Han, Nan, Khan, Safia, Jafri, Syed Hassan Mujtaba, 1979, Wang, Mingyang, Ning, Yafei, Li, Hu |
| المصدر: | IEEE Photonics Journal. 16(3) |
| مصطلحات موضوعية: | Graphene nanoribbons, heterojunctions, responsivity, self-powered photodetectors |
| الوصف: | 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 x 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. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-527900 https://doi.org/10.1109/JPHOT.2024.3381440 https://uu.diva-portal.org/smash/get/diva2:1857324/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 19430655 |
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| DOI: | 10.1109/JPHOT.2024.3381440 |