| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
Atomic configuration and electronic structures of impurity metal atoms in organic semiconductors have been studied by using the first-principles quantum mechanical calculations. This project has clarified that there exist two kinds of atoms, one of which produces scattered distribution in semiconductors and the other of which produces atom clusters between organic molecules. In addition, we showed that the former atoms are always ionized and degrade the carrier mobility, while the latter atoms easily release electrons and promote tunneling leakage currents. These results bring not only the marked progress in defect physics of organic systems but also the valuable compass for developments of future devices.
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