2011 Fiscal Year Final Research Report
Research of IR spectral features caused by nanoparticle surfaces and metastable crystal structure
| Project/Area Number |
22654022
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | Tohoku University |
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Principal Investigator |
KIMURA Yuki 東北大学, 大学院・理学研究科, 助教 (50449542)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKON Itsuki 東京大学, 大学院・理学研究科, 助教 (70451820)
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| Project Period (FY) |
2010 – 2011
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| Keywords | ナノ粒子 / 赤外スペクトル / 宇宙ダスト / 天体観測 / 表面 / 結晶 |
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| Research Abstract |
There are a lot of unidentified infrared (UIR)features in the astronomical spectra. We assumed the reason that is characteristic physical parameters of nanoparticles, because no one ever considers the properties of nanoparticle, although cosmic dust has nanometer in size. To identify the UIR features, we constructed a new system, which is able to measure IR spectra of free frying as-grown nanoparticles. Our results showed that the free frying nanoparticles have different features compared with that in the spectra of bulk and nanoparticles embedded into a KBr pellets. UIR features will be identified based on our concept.
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