Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties
In this paper, we propose a one-dimensional model that combines photoelectricity, piezoelectricity, and photothermal effects. The influence of ultraviolet light on the electromechanical coupling properties of GaN nanowires is investigated. It is shown that, since the ultraviolet photon energy is lar...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/94655 |
| _version_ | 1848765896475017216 |
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| author | Yang, K. Qin, G. Wang, L. Zhao, M. Lu, Chunsheng |
| author_facet | Yang, K. Qin, G. Wang, L. Zhao, M. Lu, Chunsheng |
| author_sort | Yang, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, we propose a one-dimensional model that combines photoelectricity, piezoelectricity, and photothermal effects. The influence of ultraviolet light on the electromechanical coupling properties of GaN nanowires is investigated. It is shown that, since the ultraviolet photon energy is larger than the forbidden gap of GaN, the physical fields in a GaN nanowire are sensitive to ultraviolet. The light-induced polarization can change the magnitude and direction of a piezoelectric polarization field caused by a mechanical load. Moreover, a large number of photogenerated carriers under photoexcitation enhance the current density, whilst they shield the Schottky barrier and reduce rectifying characteristics. This provides a new theoretical nanoarchitectonics approach for the contactless performance regulation of nano-GaN devices such as photoelectric sensors and ultraviolet detectors, which can further release their great application potential. |
| first_indexed | 2025-11-14T11:42:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-94655 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:42:32Z |
| publishDate | 2023 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-946552024-05-03T02:10:22Z Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties Yang, K. Qin, G. Wang, L. Zhao, M. Lu, Chunsheng GaN nanowires electromechanical coupling photoconductive effects photothermal effect ultraviolet photoexcitation In this paper, we propose a one-dimensional model that combines photoelectricity, piezoelectricity, and photothermal effects. The influence of ultraviolet light on the electromechanical coupling properties of GaN nanowires is investigated. It is shown that, since the ultraviolet photon energy is larger than the forbidden gap of GaN, the physical fields in a GaN nanowire are sensitive to ultraviolet. The light-induced polarization can change the magnitude and direction of a piezoelectric polarization field caused by a mechanical load. Moreover, a large number of photogenerated carriers under photoexcitation enhance the current density, whilst they shield the Schottky barrier and reduce rectifying characteristics. This provides a new theoretical nanoarchitectonics approach for the contactless performance regulation of nano-GaN devices such as photoelectric sensors and ultraviolet detectors, which can further release their great application potential. 2023 Journal Article http://hdl.handle.net/20.500.11937/94655 10.3390/ma16031080 eng http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | GaN nanowires electromechanical coupling photoconductive effects photothermal effect ultraviolet photoexcitation Yang, K. Qin, G. Wang, L. Zhao, M. Lu, Chunsheng Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title | Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title_full | Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title_fullStr | Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title_full_unstemmed | Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title_short | Theoretical Nanoarchitectonics of GaN Nanowires for Ultraviolet Irradiation-Dependent Electromechanical Properties |
| title_sort | theoretical nanoarchitectonics of gan nanowires for ultraviolet irradiation-dependent electromechanical properties |
| topic | GaN nanowires electromechanical coupling photoconductive effects photothermal effect ultraviolet photoexcitation |
| url | http://hdl.handle.net/20.500.11937/94655 |