| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
|
|---|
| Outline of Final Research Achievements |
Microstructure control of n- and p-type semiconductor materials was studied to drastically improve their gas sensing properties. SnO2 nanorods that were synthesized by a hydrothermal method showed significantly high sensor responses to combustible gases including CO, ethanol, and acetone. The enhancement in the sensor response is due to improved gas diffusivity in porous films made of anisotropic SnO2 nanorods. ZnO nanorods also showed good sensitivity to combustible gases. For p-type materials, Cu2O nanocrystals were synthesized by a hot-soap method. They can sensitively detect H2S even at low temperatures when loaded with Pd. The diode composed of n-type ZnO nanorods and p-type Cu2O nanocrystals showed a good rectification behavior and responded to combustible gases.
|
