Field Electron Emission from Highly Graphitic Diamond Films with Ball-Like Surface Morphologies

Autor:	HE Jin-tian, Li Yunjun, Zhang Bing-lin, Yao Ning, Gong Zhi-ben
Rok vydání:	1997
Předmět:	Materials science business.industry Oxide General Physics and Astronomy Diamond engineering.material Cathode law.invention Anode Field electron emission chemistry.chemical_compound Carbon film Optical microscope chemistry law engineering Optoelectronics Thin film business
Zdroj:	Chinese Physics Letters. 14:633-636
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/14/8/019
Popis:	Chemical vapor deposited diamond films with ball-like surface morphologies for field electron emission are reported on Mo substrates. A transparent conducting thin film anode (indium-tin oxide film coated on glass substrate) technique was used to determine the locations of field emission sites on the film cathode. The emission site density was obtained by counting damage spots on the film anode by optical microscopy. These damage spots, caused by the impact of emission electrons, corresponded to the emission sites. With the ball-like diamond films, a low turn-on filed of 2.1 V/μm and high current density of 4 mA/cm2 from an emitting area of 0.3 cm2 were obtained. A field enhancement model and injection mechanism have been developed to explain the low turn-on field and high emission current.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::40a2369431111312f195c799626cdbf2 https://doi.org/10.1088/0256-307x/14/8/019 Zobrazit plný text záznamu