Raman Spectroscopy of Materials with Regulated Nano Spaces under High Pressure
| Project Area | New Materials Science Using Regulated Nano Spaces －Strategy in Ubiquitous Elements |
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| Project/Area Number |
19051008
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Gifu University |
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Principal Investigator |
KUME Tetsuji (2009-2011) 岐阜大学, 工学部, 准教授 (30293541)
清水 宏晏 (2007-2008) Gifu University, 工学部, 教授 (80023258)
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| Co-Investigator(Kenkyū-buntansha) |
SASAKI Shigeo 岐阜大学, 工学部, 教授 (30196159)
久米 徹二 岐阜大学, 工学部, 准教授 (30293541)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMIZU Hiroyasu 岐阜大学, 工学部, 教授 (80023258)
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| Project Period (FY) |
2007 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥44,900,000 (Direct Cost: ¥44,900,000)
Fiscal Year 2011: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2010: ¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 2009: ¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 2008: ¥13,100,000 (Direct Cost: ¥13,100,000)
Fiscal Year 2007: ¥15,900,000 (Direct Cost: ¥15,900,000)
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| Keywords | クラスレート / 半導体クラスレート / ラマン散乱 / ナノ結晶 / ラットリング / 高圧XRD / 高圧X線回折 / ナノ構造 / 高圧x線回折 |
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| Research Abstract |
For various types of the regulated nanospace materials (clathrates), the structural phase transitions and vibrational properties of guest atoms encapsulated in the cages were investigated under extremely high pressure. We observed pressure induced phenomena which were unique to these materials and have never been discover in other covalent bonding materials. The vibrations of the guest were also clarified as a function of pressure for various clathrates. As a result, it was demonstrated that the guest vibrational frequency is determined by the cage and the quest sizes.
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Report
(7 results)
Research Products
(72 results)
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[Presentation] Optical Band Gap of Semiconductive Type II Si Clathrate Purified by Centrifugation2011
Author(s)
T. Kume, R. Himeno, F. Ohashi, E. Asai, T. Ban, T. Suzuki, T. Iida, H. Habushi, Y. Tsutsumi, H. Natsuhara, S. Nonomura
Organizer
24th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS 24)
Place of Presentation
Nara, Japan
Related Report
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