| Budget Amount *help |
¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
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| Outline of Final Research Achievements |
Organic materials that exhibit tunable luminescence in the solid state under external mechanical stimuli have potential applications in sensors and imaging devices. However, no rational designs have been proposed that impart these mechano-responsive luminescent properties to π-conjugated compounds. In this study we demonstrated a strategy for mechano-responsive luminescent materials by imparting amphiphilic and dipolar characteristics to a luminescent π-conjugated system. The π-conjugated luminophore with a didodecylamino group at one end and a tri(ethylene glycol) ester group at the other end afforded segregated solid structures by separately aggregating its hydrophobic and hydrophilic moieties. In the segregated structures the molecules are aligned in the same direction, thereby generating a conflict between dipole moment between the neighboring molecules. As a result, these metastable solid structures can be transformed through mechanical stimulation to a more stable structure.
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