| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2016: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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| Outline of Final Research Achievements |
In this research, a method to detect ultrasonic signals with high sensitivity was developed by integrating a transistor with steep switching characteristics and a piezoelectrics. From the theoretical analysis, mechanism of the steep switching characteristics was established, which is originated from the transition
from steady-state and non-steady-state in ferroelectric/semiconductor heterostructures. Moreover, high-performance piezoelectric thin films were developed. It was found that organic ferroelectric thin films with a thickness of several micrometers are useful for ultrasonic detection.
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