| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Outline of Final Research Achievements |
The energy band structure is fundamental of electronic properties and charge transport of solid materials. We have developed a new experimental apparatus aiming at measuring the energy band structure of unoccupied states of organic semiconductors. The method is an expansion of the low-energy inverse photoelectron spectroscopy which we created in 2012. We designed a new low-energy electron source to generate an electron beam with the kinetic energy as low as 2 eV. Using a vacuum chamber with magnetic and electric shields quipped with this electron source, we have successfully performed an angle-resolved measurement of the image potential states of graphite surface. We also constructed a vacuum chamber for preparing organic semiconductor films with the uniform molecular orientation. Combining this with the angle-resolved low-energy inverse photoelectron spectrometer mentioned above, we are trying to measure energy band structure of unoccupied states of organic semiconductors.
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