The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes
Fabricating the nanowire ultraviolet light emitting diodes (UV LEDs) has been a promising candidate to dramatically enhance the external quantum efficiency (EQE) of UV LEDs. For a great luminescent performance, it is necessary to understand the propagating features of light inside the nanowire. The...
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9128013/ |
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| author | Zichen Zhang Fangliang Gao Guoqiang Li |
| author_facet | Zichen Zhang Fangliang Gao Guoqiang Li |
| author_sort | Zichen Zhang |
| collection | DOAJ |
| description | Fabricating the nanowire ultraviolet light emitting diodes (UV LEDs) has been a promising candidate to dramatically enhance the external quantum efficiency (EQE) of UV LEDs. For a great luminescent performance, it is necessary to understand the propagating features of light inside the nanowire. The relationship between the resonance inside the nanowire, the light extraction efficiency (LEE) and the far-field distribution of nanowire UV LEDs, as well as the geometrical parameters of the nanowire and the impact of surrounding index has been discussed in this paper. It is shown that the resonance plays an important role to enhance the LEE at various parameters. The study on the far-field distribution indicates that the variation of far-field patterns at different conditions can be conveniently explained by the geometrical optics theory. This deep understanding provides benefits to design the nanowire UV LEDs. |
| format | Article |
| id | doaj-art-073892007ae04ec7823a4e10a06655b7 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-073892007ae04ec7823a4e10a06655b72025-08-20T03:33:01ZengIEEEIEEE Photonics Journal1943-06552020-01-0112411010.1109/JPHOT.2020.30056559128013The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting DiodesZichen Zhang0https://orcid.org/0000-0001-6874-4370Fangliang Gao1Guoqiang Li2https://orcid.org/0000-0002-1493-6657State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, ChinaState Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, ChinaState Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, ChinaFabricating the nanowire ultraviolet light emitting diodes (UV LEDs) has been a promising candidate to dramatically enhance the external quantum efficiency (EQE) of UV LEDs. For a great luminescent performance, it is necessary to understand the propagating features of light inside the nanowire. The relationship between the resonance inside the nanowire, the light extraction efficiency (LEE) and the far-field distribution of nanowire UV LEDs, as well as the geometrical parameters of the nanowire and the impact of surrounding index has been discussed in this paper. It is shown that the resonance plays an important role to enhance the LEE at various parameters. The study on the far-field distribution indicates that the variation of far-field patterns at different conditions can be conveniently explained by the geometrical optics theory. This deep understanding provides benefits to design the nanowire UV LEDs.https://ieeexplore.ieee.org/document/9128013/Nanowirelight extraction efficiencyultraviolet light-emitting diodes |
| spellingShingle | Zichen Zhang Fangliang Gao Guoqiang Li The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes IEEE Photonics Journal Nanowire light extraction efficiency ultraviolet light-emitting diodes |
| title | The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes |
| title_full | The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes |
| title_fullStr | The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes |
| title_full_unstemmed | The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes |
| title_short | The Impact of Resonance on the Light Extraction Efficiency of Single Nanowire Ultraviolet Light Emitting Diodes |
| title_sort | impact of resonance on the light extraction efficiency of single nanowire ultraviolet light emitting diodes |
| topic | Nanowire light extraction efficiency ultraviolet light-emitting diodes |
| url | https://ieeexplore.ieee.org/document/9128013/ |
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