http://www.cnr.it/ontology/cnr/individuo/prodotto/ID131591
On the Secondary Electron Emission from CVD Diamond with Respect to Energy Conversion (Abstract/Poster in convegno)
- Type
- Label
- On the Secondary Electron Emission from CVD Diamond with Respect to Energy Conversion (Abstract/Poster in convegno) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Alternative label
Trucchi D.M., Cappelli E., Valentini V., Zanza A., Bellucci A., Ascarelli P. (2009)
On the Secondary Electron Emission from CVD Diamond with Respect to Energy Conversion
in Diamond Conference 2009, Athens (Greece)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Trucchi D.M., Cappelli E., Valentini V., Zanza A., Bellucci A., Ascarelli P. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- Diamond 2009 Conference, Athens, Greece, September 6-10, 2009 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
- Applications exploiting the high secondary electron emission (SEE) yield of CVD diamond films are of great interest. The SEE of polycrystalline diamond films has been shown to depend on surface properties, related to electron affinity and geometrical boundaries roughness, and on the electronic transport properties inside the bulk material, owing to electron refilling limitations under exposure. In order to get a comprehensive vision of the role of each parameter influencing CVD diamond SEE capability, an extensive study has been performed as a function of the primary electron beam energy on polycrystalline CVD samples of different physical properties. A controlled set of diamond film samples has been deposited under same deposition conditions, differing only in the density of nucleation sites. That allows to control the film microstructure and electronic properties. In order to correlate structure quality (defect density, etc) with electrical transport, the samples have been characterized ex situ during the growth process: structurally using Raman spectroscopy and X-ray diffraction, morphologically by SEM and AFM, and electrically by the measurement of conductivity.
The secondary electron emission experimental results have been analysed according to the theoretical model previously developed. The energy conversion capability of the films, when used as converters for high-energy electron beams, has been analysed by evaluating the open-circuit voltage, short-circuit current, output resistance and power, besides the energy conversion efficiency.
(literal)
- Titolo
- On the Secondary Electron Emission from CVD Diamond with Respect to Energy Conversion (literal)
- Autore CNR
Incoming links:
- Autore CNR di
- Prodotto