2019 Fiscal Year Final Research Report
Development of fast far-field Raman microspectroscopy for stress imaging using surface plasmon resonance
| Project/Area Number |
17K06066
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Meijo University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | ラマン分光法 / 直接イメージング / 領域分光 / ポリカーボネート / ひずみ測定 / 表面プラズモン / Si |
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| Outline of Final Research Achievements |
In this study, a Fast Far-field micro-Raman spectroscopy equipped with direct Raman imaging and multipoint simultaneous spectroscopic systems was developed. We obtained two-dimensional direct Raman images of polystyrene beads with 5 micrometer in diameter and polycrystalline silicon. Multi-point spectroscopic imaging and grain boundary estimations of poly silicon and alumina were performed. Next, the molecular chain orientation before/after fracture and strain of an amorphous polycarbonate (PC) were analyzed using polarized Raman spectroscopy. The Raman shift from PC linearly decreased with the applied strain. Therefore, Raman spectroscopy is an effective method to analyze structural information and strain/stress of polycarbonates. Last, Raman spectra of Si and PC were measured using surface plasmon resonance in gold nanoparticles.
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| Free Research Field |
材料力学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，2次元直接イメージングと多点同時分光法を同時に実現可能な顕微ラマン分光装置を構築したことで，次世代パワーデバイスに代表される半導体の電子材料や，航空機・自動車の軽量化におけるキーマテリアルである複合材料や樹脂などのメゾ構造やそこに働く応力やひずみを，2次元領域で評価できる可能性を示した．このことから，材料の特性や寿命，構造物の信頼性やデバイス性能の改善につながる評価が今後期待できる成果が得られた．
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