Changchun Institute of Optics,Fine Mechanics and Physics,CAS
| A high-response ultraviolet photodetector by integrating GaN nanoparticles with graphene | |
| Y. Chen; Y. Wu; J. Ben; K. Jiang; Y. Jia; S. Zhang; H. Zang; Z. Shi; B. Duan; X. Sun and D. Li | |
| 2021 | |
| Source Publication | Journal of Alloys and Compounds
 |
| ISSN | 9258388 |
| Volume | 868 |
| Abstract | A new type of ultraviolet photodetector was fabricated by integrating GaN nanoparticles as the absorber and graphene as the carrier transport channel. The GaN nanoparticles prepared by metal-organic chemical vapor deposition exhibited the average diameter, height and density of 87.2 nm, 18.4 nm and 5 109/cm2, respectively. The chemical component and optical properties of the GaN nanoparticles were also confirmed and discussed. The monolayer graphene film was transferred onto GaN nanoparticles for the detector fabrication, which possessed the high crystalline quality and uniform coverage. Since the GaN nanoparticles providing trap states for the photo-generated hole, a longer carrier lifetime and higher gain would be obtained. In addition, based on the high carrier mobility of the graphene, the ultraviolet photodetector exhibited a persistent photoconduction effect and achieved a high responsivity of 200.69 A/W. The Kelvin probe force microscope measurements were carried out to reveal the device work mechanism and the carrier transport model has been established according to the decreased graphene surface potential of 0.2 eV before and after contacting with the GaN nanoparticles. Present work provides a method for obtaining new types of -nitrides-based ultraviolet photodetectors with high response. 2021 Elsevier B.V. |
| DOI | 10.1016/j.jallcom.2021.159281 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ciomp.ac.cn/handle/181722/65304 |
| Collection | 中国科学院长春光学精密机械与物理研究所 |
| Recommended Citation GB/T 7714 | Y. Chen,Y. Wu,J. Ben,et al. A high-response ultraviolet photodetector by integrating GaN nanoparticles with graphene[J]. Journal of Alloys and Compounds,2021,868. |
| APA | Y. Chen.,Y. Wu.,J. Ben.,K. Jiang.,Y. Jia.,...&X. Sun and D. Li.(2021).A high-response ultraviolet photodetector by integrating GaN nanoparticles with graphene.Journal of Alloys and Compounds,868. |
| MLA | Y. Chen,et al."A high-response ultraviolet photodetector by integrating GaN nanoparticles with graphene".Journal of Alloys and Compounds 868(2021). |
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| A high-response ultr（8619KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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