Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy
We present a rolled-up approach to form Ge microtubes and their array by rolling-up hybrid Ge/Cr nanomembranes, which is driven by the built-in stress in the deposited Cr layer. The study of Raman intensity as a function of the angle between the crystal-axis and the polarization-direction of the sca...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2015-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4914916 |
| _version_ | 1818421384414494720 |
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| author | Qinglei Guo Miao Zhang Zhongying Xue Jing Zhang Gang Wang Da Chen Zhiqiang Mu Gaoshan Huang Yongfeng Mei Zengfeng Di Xi Wang |
| author_facet | Qinglei Guo Miao Zhang Zhongying Xue Jing Zhang Gang Wang Da Chen Zhiqiang Mu Gaoshan Huang Yongfeng Mei Zengfeng Di Xi Wang |
| author_sort | Qinglei Guo |
| collection | DOAJ |
| description | We present a rolled-up approach to form Ge microtubes and their array by rolling-up hybrid Ge/Cr nanomembranes, which is driven by the built-in stress in the deposited Cr layer. The study of Raman intensity as a function of the angle between the crystal-axis and the polarization-direction of the scattered light, i.e., polarized Raman measurement reveals that the strain state in Ge tube is uniaxial and tensile, and can reach a maximal value 1.0%. Both experimental observations and theoretical calculations suggest that the uniaxial-tensile strain residual in the rolled-up Ge tubes correlates with their tube diameters, which can be tuned by the thicknesses of the Cr layers deposited. Using the polarized Raman scattering spectroscopy, our study provides a comprehensive analysis of the strain state and evolution in self-rolled-up nano/micro-tubes. |
| first_indexed | 2024-12-14T13:09:30Z |
| format | Article |
| id | doaj.art-7726b290834b419eb1e53b83df0f06cc |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-14T13:09:30Z |
| publishDate | 2015-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-7726b290834b419eb1e53b83df0f06cc2022-12-21T23:00:14ZengAIP Publishing LLCAIP Advances2158-32262015-03-0153037115037115-710.1063/1.4914916015503ADVUniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopyQinglei Guo0Miao Zhang1Zhongying Xue2Jing Zhang3Gang Wang4Da Chen5Zhiqiang Mu6Gaoshan Huang7Yongfeng Mei8Zengfeng Di9Xi Wang10State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaDepartment of Materials Science, Fudan University, Shanghai 200433, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaDepartment of Materials Science, Fudan University, Shanghai 200433, People’s Republic of ChinaDepartment of Materials Science, Fudan University, Shanghai 200433, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, People’s Republic of ChinaWe present a rolled-up approach to form Ge microtubes and their array by rolling-up hybrid Ge/Cr nanomembranes, which is driven by the built-in stress in the deposited Cr layer. The study of Raman intensity as a function of the angle between the crystal-axis and the polarization-direction of the scattered light, i.e., polarized Raman measurement reveals that the strain state in Ge tube is uniaxial and tensile, and can reach a maximal value 1.0%. Both experimental observations and theoretical calculations suggest that the uniaxial-tensile strain residual in the rolled-up Ge tubes correlates with their tube diameters, which can be tuned by the thicknesses of the Cr layers deposited. Using the polarized Raman scattering spectroscopy, our study provides a comprehensive analysis of the strain state and evolution in self-rolled-up nano/micro-tubes.http://dx.doi.org/10.1063/1.4914916 |
| spellingShingle | Qinglei Guo Miao Zhang Zhongying Xue Jing Zhang Gang Wang Da Chen Zhiqiang Mu Gaoshan Huang Yongfeng Mei Zengfeng Di Xi Wang Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy AIP Advances |
| title | Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy |
| title_full | Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy |
| title_fullStr | Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy |
| title_full_unstemmed | Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy |
| title_short | Uniaxial and tensile strained germanium nanomembranes in rolled-up geometry by polarized Raman scattering spectroscopy |
| title_sort | uniaxial and tensile strained germanium nanomembranes in rolled up geometry by polarized raman scattering spectroscopy |
| url | http://dx.doi.org/10.1063/1.4914916 |
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