| Project/Area Number |
16K17975
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Device related chemistry
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Hosokai Takuya 国立研究開発法人産業技術総合研究所, 分析計測標準研究部門, 研究員 (90613513)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 励起状態 / 励起準位 / 光電子収量法 / パルスレーザ / 光電子放出 / 励起子 / 二光子吸収 / 光電子収量分光法 / 時間分解測定 / 有機半導体 / イオン化ポテンシャル / ペンタセン / 分子性固体 / 光物性 / 電子・電気材料 |
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| Outline of Final Research Achievements |
In this study, I have proposed new idea that enables determination of ionization energy of transient species, i.e., excited singlet state and triplet state, of organic semiconducting thin films, so-called time-resolved two photon photoelectron yield spectroscopy (2P-PYS). By constructing a prototype of the experimental set-up of 2P-PYS, I tested the idea by using pentacene thin films grown on ITO substrates. Using Nd:YAG sub-ns pulse laser, I confirmed that the detection of photoelectron emission is possible from an excited triplet state of the thin films. Further, I revealed that the very intense pulse laser is problematic to determine the energy of the excited state. An appropriate intense pulse laser and experimental condition are needed to be found for the next and final step.
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