Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7744233 | Solid State Ionics | 2018 | 6 Pages |
Abstract
Ag+ ion conducting xAg2O·(30â¯ââ¯x)Al2O3·55P2O5·15SiO2 (xâ¯=â¯20 and 25, mol%) glasses were prepared using a conventional melting method, and structures and glass transition temperature were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), ultraviolet-visible (UV-Vis) and Fourier transform infrared (FTIR) spectroscopies. Impedance measurement reveals the glass with xâ¯=â¯25 shows a high Ag+ ion conductivity of 3â¯Ãâ¯10â3â¯Sâ¯cmâ1 at 300â¯Â°C. Ag+ ion emission measurement was carried out using a sharpened glass fiber tip less than 1â¯Î¼m, and the emission current was successfully observed above the acceleration voltage of 4â¯kV at 300â¯Â°C and 4â¯Ãâ¯10â5â¯Pa. Silver particles were confirmed on the target substrate after the Ag+ emission measurement. A good linear correlation is obtained between log(current) and square root of the voltage, suggesting the emission of Ag+ ion from the tip of glass fiber is expressed by Schottky model. In this ion emission method, a plasma is not required for ionization and the ion emission mechanism is simple, and various ion conducting glasses can be applied for the emitter of ion gun.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yusuke Daiko, Kyohei Segawa, Sawao Honda, Yuji Iwamoto,