2013 Fiscal Year Final Research Report
Molecular orientation and the interaction between metal-organic interfaces probed by in situ nonliniear spectroscopy
| Project/Area Number |
23550213
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional materials/Devices
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
MIYAMAE Takayuki 独立行政法人産業技術総合研究所, ナノシステム研究部門, 主任研究員 (80358134)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 表面・界面 / 和周波発生 / 有機EL / 有機薄膜太陽電池 |
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| Research Abstract |
We investigated buried organic interfaces and the organic light emitting diode (OLED) interfaces using sum-frequency generation (SFG) vibrational spectroscopy with visible wavelength tunability. In the organic light emitting material interfaces, we found that charge transfer state between the metal and the organic materials were formed at the organic functional material/ metal interfaces. By applying the doubly resonant SFG technique to the OLED devices, we succeed to probe the buried organic layers in the multi-layered OLED device during operation. We also performed the characterization of the PCBM: P3HT surfaces and their thermal annealing effect using doubly-resonant SFG spectroscopy. We found that the extent of the -conjugation length are expanded at the surface by the thermal annealing.
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