| Budget Amount *help |
¥24,310,000 (Direct Cost: ¥18,700,000、Indirect Cost: ¥5,610,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2014: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
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| Outline of Final Research Achievements |
The use of electrochemical technique was used for controlling charge carriers dynamically in polymer semiconductor devices. High-performance polymer light-emitting electrochemical cells (LECs) were prepared and the dynamics of ionic and electronic charges were investigated, and found the response of the ion is very slow, while that of the electron is very fast. This finding enables separate control of ionic and electronic charges. By using this unique technique, high current density of 1 kA/cm2 was achieved in a light-emitting polymer. This demonstration indicate the LEC is promising for the future polymer injection laser. Furthermore, the electrochemical technique was introduced to fabricate inorganic semiconductor materials. The use of one droplet of electrolyte onto inorganic semiconductors achieved novel and simple light-emitting and light-detecting devices.
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