| Budget Amount *help |
¥66,300,000 (Direct Cost: ¥51,000,000、Indirect Cost: ¥15,300,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2017: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2016: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2015: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Fiscal Year 2014: ¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
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| Outline of Final Research Achievements |
To elucidae the synagetic effect that a number of photons and molecules cause in organic solids, we have examined the photochemical dynamics of 100-nm sized organic nanoparticlescolloids by means of steady-state and time-resolved spectroscopies. Especailly, we found that nonlinear enhancement of photochromic reaction induced by ns-laser pulse excitation. We revealed transient laser heating in a ns-time scale palyed a key role in the nonlinear responce and proposed out a novel type of photosynagetic resopnce charactaristic to organic solids, where the coopeative interactions of multi-photons and multi-chromphores are important. In relation to transient laser heating, colloidal dispersions phthalocyanine nanorods having 40 nm width and 500 nm length were fabricated successfully. We developed a sub-picosecond pump-probe microspectroscopic system, and succeeded in the measurement of the femtosecond excited-state dynamics of organic single nanoparticles
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