2011 Fiscal Year Final Research Report
Elucidation of photophysico-chemical properties of single molecular nano-aggregates by using a low-temperature matrix isolation microscopy
| Project/Area Number |
20685001
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Physical chemistry
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2008 – 2011
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| Keywords | 分子ナノ集合体 / ナノ粒子 / 顕微分光 |
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| Research Abstract |
We have developed a variable-temperature single-molecule spectroscopy(SMS) apparatus and revealed photo physical/photochemical properties of several organic dyes and their nano-aggregates as follows. 1) The triplet lifetimes, intersystem crossing yields, and photobleaching yields for single-molecules of 9, 10-bis(phenylethynyl) anthracene embedded in polymer films were quantitatively determined. 2) We examined the electronic energy transfer(EET) in tetracence-doped p-terphenyl nanoparticles and theoretically revealed the origin of the extremely efficient EET in this system. 3) SMS of perylene bisimide(PDI) in aγ-cyclodextrin(γCD) solid film was performed, and we found that the hydrogen atom transfer reaction would take place between PDI andγCD in the inclusion complex.
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