| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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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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