| Autor: |
Baojun Liu, Chen, Kevin P., Kherani, Nazir P., Zukotynski, Stefan, Antoniazzi, Armando B. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 2/25/2008, Vol. 92 Issue 8, p083511, 3p, 4 Graphs |
| Abstrakt: |
Tritium-powered betavoltaic micropower sources using contact potential difference (CPD) are demonstrated. Thermally stable scandium tritide thin films with a surface activity of 15 mCi/cm2 were used as the beta particle source. The electrical field created by the work function difference between the ScT film and a platinum or copper electrode was used to separate the beta-generated electrical charge carriers. Open circuit voltages of 0.5 and 0.16 V and short circuit current densities of 2.7 and 5.3 nA/cm2 were achieved for gaseous and solid dielectric media-based CPD cells, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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