| Budget Amount *help |
¥100,620,000 (Direct Cost: ¥77,400,000、Indirect Cost: ¥23,220,000)
Fiscal Year 2017: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2016: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2015: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2014: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2013: ¥46,020,000 (Direct Cost: ¥35,400,000、Indirect Cost: ¥10,620,000)
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| Outline of Final Research Achievements |
We have measured current-voltage (I-V) characteristics, thermopower, and magneto-resistance of single molecular junctions using mechanically controllable break junction (MCBJ) and scanning tunneling spectroscope BJ (STMBJ) methods. Molecular junctions based on carbazole oligomers showed a rectification I-V behavior. Molecular orbital deformation induced by electric field between the electrodes resulted in the asymmetric contacts with the electrodes. The magnetoresistance was observed in carbazole-based junctions with Ni electrodes, in which the magneto-resistance ratio was varied depending upon the bias voltage applied. The Seebeck coefficients of molecular junctions were also governed by the contact between molecule and electrode, indicating the importance of the junction structures for electrical properties.
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