A study of ultrafast excitonic transfer processes in light-harvesting dendrimers with focusing on their temperature dependence
| Project/Area Number |
22340083
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Kumamoto University |
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Principal Investigator |
AKAI Ichiro 熊本大学, 衝撃・極限環境研究センター, 教授 (20212392)
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| Co-Investigator(Kenkyū-buntansha) |
FUJII Atsuhiro 熊本大学, 衝撃・極限環境研究センター, 名誉教授 (30034375)
SIMOJO Fuyuki 熊本大学, 大学院・自然科学研究科, 教授 (60253027)
SIMAMOTO Tomosjige 熊本大学, 衝撃・極限環境研究センター, 技術専門職員 (70419638)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2010: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Keywords | 光物性 / ナノ材料 / 高効率太陽光発電材料 / フェムト秒分光 / エネルギー伝達 |
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| Research Abstract |
In light-harvesting (LH) dendrimer systems, we have found thatDexter type exciton transfer processes take place from LH-antennas to the central coresubunits in ultra-short time region. In the ultrafast processes, it is also clarifiedthat soft-vibrational modes in the LH-antennas, which have very low frequencies, playimportant roles at room temperature for the highly efficient energy transfer in theLH-dendrimers. These results are important and novel guidelines for material designstargeting on practical applications of these related materials.
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Report
(4 results)
Research Products
(114 results)
