A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure
Graphene (Gr) has high transmittance to ultraviolet (UV) light and high mobility, which can effectively collect and transfer carriers. In this work, MgZnO (MZO) films were grown on the surface of the p-GaN by magnetron sputtering. A heterojunction solar-blind UV detector with Gr/MZO/GaN structure wa...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Frontiers Media S.A.
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/5f80b36009634303b1d673f88524cca2 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:5f80b36009634303b1d673f88524cca2 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:5f80b36009634303b1d673f88524cca22021-11-30T18:26:50ZA Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure2296-801610.3389/fmats.2021.787613https://doaj.org/article/5f80b36009634303b1d673f88524cca22021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.787613/fullhttps://doaj.org/toc/2296-8016Graphene (Gr) has high transmittance to ultraviolet (UV) light and high mobility, which can effectively collect and transfer carriers. In this work, MgZnO (MZO) films were grown on the surface of the p-GaN by magnetron sputtering. A heterojunction solar-blind UV detector with Gr/MZO/GaN structure was constructed by introducing Gr as the window layer film. The test results show that the device has excellent detection ability for solar-blind UV light. The light response cut-off edge of the device is 263 nm, under the illumination of 255 nm and the bias voltage of −5 V, the responsivity is 14.6 mA/W, the rise time is 0.79 s, the decay time is 0.2 s, and the external quantum efficiency is 71.1%. The importance of this work lies in providing a reference for the application of Gr-based photodetectors.Zhao WangJun LinXuan WeiWei ZhengQichang HuQichang HuQichang HuFrontiers Media S.A.articleMgZnOsolar-blind ultraviolet photodetectorgraphenevertical structureheterojunctionTechnologyTENFrontiers in Materials, Vol 8 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
MgZnO solar-blind ultraviolet photodetector graphene vertical structure heterojunction Technology T |
| spellingShingle |
MgZnO solar-blind ultraviolet photodetector graphene vertical structure heterojunction Technology T Zhao Wang Jun Lin Xuan Wei Wei Zheng Qichang Hu Qichang Hu Qichang Hu A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| description |
Graphene (Gr) has high transmittance to ultraviolet (UV) light and high mobility, which can effectively collect and transfer carriers. In this work, MgZnO (MZO) films were grown on the surface of the p-GaN by magnetron sputtering. A heterojunction solar-blind UV detector with Gr/MZO/GaN structure was constructed by introducing Gr as the window layer film. The test results show that the device has excellent detection ability for solar-blind UV light. The light response cut-off edge of the device is 263 nm, under the illumination of 255 nm and the bias voltage of −5 V, the responsivity is 14.6 mA/W, the rise time is 0.79 s, the decay time is 0.2 s, and the external quantum efficiency is 71.1%. The importance of this work lies in providing a reference for the application of Gr-based photodetectors. |
| format |
article |
| author |
Zhao Wang Jun Lin Xuan Wei Wei Zheng Qichang Hu Qichang Hu Qichang Hu |
| author_facet |
Zhao Wang Jun Lin Xuan Wei Wei Zheng Qichang Hu Qichang Hu Qichang Hu |
| author_sort |
Zhao Wang |
| title |
A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| title_short |
A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| title_full |
A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| title_fullStr |
A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| title_full_unstemmed |
A Solar-Blind Ultraviolet Photodetector With Graphene/MgZnO/GaN Vertical Structure |
| title_sort |
solar-blind ultraviolet photodetector with graphene/mgzno/gan vertical structure |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/5f80b36009634303b1d673f88524cca2 |
| work_keys_str_mv |
AT zhaowang asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT junlin asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT xuanwei asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT weizheng asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu asolarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT zhaowang solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT junlin solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT xuanwei solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT weizheng solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure AT qichanghu solarblindultravioletphotodetectorwithgraphenemgznoganverticalstructure |
| _version_ |
1718406382433075200 |