Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films
We report a detailed investigation on temperature-dependent Raman scattering of β-(AlGa)2O3 thin films with different Al content (0-0.72) under the temperature range of 77-300 K. The temperature-dependent Raman shifts and linewidths of the phonon modes were obtained by employing Lorentz fitting. The...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2016-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4940763 |
| _version_ | 1819094423226548224 |
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| author | Xu Wang Zhengwei Chen Fabi Zhang Katsuhiko Saito Tooru Tanaka Mitsuhiro Nishio Qixin Guo |
| author_facet | Xu Wang Zhengwei Chen Fabi Zhang Katsuhiko Saito Tooru Tanaka Mitsuhiro Nishio Qixin Guo |
| author_sort | Xu Wang |
| collection | DOAJ |
| description | We report a detailed investigation on temperature-dependent Raman scattering of β-(AlGa)2O3 thin films with different Al content (0-0.72) under the temperature range of 77-300 K. The temperature-dependent Raman shifts and linewidths of the phonon modes were obtained by employing Lorentz fitting. The linewidths broadening of phonon modes with the temperature can be well explained by a model involving the effects of thermal expansion, lattice-mismatch-induced strain, and decay of optical phonon into two and three phonons. It is clearly demonstrated dependence of the linewidths and decay process on the Al content in β-(AlGa)2O3 thin films, which can provide an experimental basis for realization of (AlGa)2O3-based optoelectronic device applications. |
| first_indexed | 2024-12-21T23:27:10Z |
| format | Article |
| id | doaj.art-f6c07ff957fa4291b599e6bab3504669 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-21T23:27:10Z |
| publishDate | 2016-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-f6c07ff957fa4291b599e6bab35046692022-12-21T18:46:36ZengAIP Publishing LLCAIP Advances2158-32262016-01-0161015111015111-1010.1063/1.4940763048601ADVTemperature dependence of Raman scattering in β-(AlGa)2O3 thin filmsXu Wang0Zhengwei Chen1Fabi Zhang2Katsuhiko Saito3Tooru Tanaka4Mitsuhiro Nishio5Qixin Guo6Department of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanDepartment of Electrical and Electronic Engineering, Synchrotron Light Application Center, Saga University, Saga 840-8502, JapanWe report a detailed investigation on temperature-dependent Raman scattering of β-(AlGa)2O3 thin films with different Al content (0-0.72) under the temperature range of 77-300 K. The temperature-dependent Raman shifts and linewidths of the phonon modes were obtained by employing Lorentz fitting. The linewidths broadening of phonon modes with the temperature can be well explained by a model involving the effects of thermal expansion, lattice-mismatch-induced strain, and decay of optical phonon into two and three phonons. It is clearly demonstrated dependence of the linewidths and decay process on the Al content in β-(AlGa)2O3 thin films, which can provide an experimental basis for realization of (AlGa)2O3-based optoelectronic device applications.http://dx.doi.org/10.1063/1.4940763 |
| spellingShingle | Xu Wang Zhengwei Chen Fabi Zhang Katsuhiko Saito Tooru Tanaka Mitsuhiro Nishio Qixin Guo Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films AIP Advances |
| title | Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films |
| title_full | Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films |
| title_fullStr | Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films |
| title_full_unstemmed | Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films |
| title_short | Temperature dependence of Raman scattering in β-(AlGa)2O3 thin films |
| title_sort | temperature dependence of raman scattering in β alga 2o3 thin films |
| url | http://dx.doi.org/10.1063/1.4940763 |
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