Abstract
Thermionic energy converters utilize thermal energy and efficiently transform it into more useful electrical energy. A key aspect inthermion thermionic energy conversion is the emission of electrons at elevated temperatures, where the electron emitter is separated from the collector by a vacuum gap and a voltage is generated due to the temperature difference between the emitter and collector. In this study, nitrogen-doped diamond films with a negative electron affinity surface have been synthesized with plasma-assisted chemical vapor deposition, and the electron emission has been imaged using high-resolution electron emission microscopy. This study reports the measurement of a thermovoltage and current, i.e. energy conversion, at temperatures considerably less than 1000°C.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2052-2055 |
| Number of pages | 4 |
| Journal | Diamond and Related Materials |
| Volume | 13 |
| Issue number | 11-12 |
| DOIs | |
| State | Published - Nov 2004 |
| Externally published | Yes |
| Event | Proceedings of the 9th International Conference on New Diamond - Tokyo, Japan Duration: Mar 26 2004 → Mar 29 2004 |
Keywords
- CVD
- Doped diamond
- Energy conversion
- Thermionic emission
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Chemistry(all)
- Mechanical Engineering
- Materials Chemistry
- Electrical and Electronic Engineering