| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
In order to develop a technique that can control the number of dopant atoms in a medium such as one by one, we studied the method based on the electrochemical potential. Silver sulfide nanodots were used as model systems for removing/dissolving dopant Ag atoms from/into the nanodots. By applying an electric field in the silver sulfide nanodots by a scanning tunneling microscope, we succeeded in controlled removal/dissolution of Ag dopant atoms from/into the silver sulfide nanodots. The similar control was also achieved using Ag-doped Ta2O5 nanodots. Measurement of a change in resistance due to the removal/dissolution using silver sulfide nanodots revealed that the developed technique can control the resistivity of a medium.
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