%0 Journal Article %1 a0123 %A Kock, F. A. M. %A Garguilo, J. M. %A Brown, Billyde %A Nemanich, R. J. %D 2002 %J Diamond and Related Materials %K (CVD) Chemical Diamond Field deposition emission vapor %N 3-6 %P 774--779 %T Enhanced low-temperature thermionic field emission from surface-treated N-doped diamond films %U http://www.sciencedirect.com/science/article/B6TWV-455VRJS-3/2/d42509d92211dbceebfe6127f8146d85 %V 11 %X Nitrogen-doped diamond films have been synthesized for application as a low-temperature thermionic field-emission cathode. The critical result of this study is the observation of uniform electron emission from UV photo-excitation and from thermionic field emission for films terminated with hydrogen or a 0.3-nm Ti layer. The samples were imaged with photoelectron emission microscopy (PEEM) and thermionic field-emission electron microscopy (T-FEEM) at temperatures up to 900 degree signC, and the electron emission current was recorded vs. the applied voltage. Hydrogen-passivated films show enhanced electron emission, but become unstable at elevated temperatures, while Ti-terminated films showed similar enhanced emission at temperatures up to 950 degree signC. Temperature-dependent I/V measurements show strongly increased electron emission at higher temperatures, suggesting that electron emission originates from the conduction band. These results indicate a promising new material for the production of low-temperature, high-brightness electron sources.

@article{a0123, abstract = {Nitrogen-doped diamond films have been synthesized for application as a low-temperature thermionic field-emission cathode. The critical result of this study is the observation of uniform electron emission from UV photo-excitation and from thermionic field emission for films terminated with hydrogen or a 0.3-nm Ti layer. The samples were imaged with photoelectron emission microscopy (PEEM) and thermionic field-emission electron microscopy (T-FEEM) at temperatures up to 900 [degree sign]C, and the electron emission current was recorded vs. the applied voltage. Hydrogen-passivated films show enhanced electron emission, but become unstable at elevated temperatures, while Ti-terminated films showed similar enhanced emission at temperatures up to 950 [degree sign]C. Temperature-dependent I/V measurements show strongly increased electron emission at higher temperatures, suggesting that electron emission originates from the conduction band. These results indicate a promising new material for the production of low-temperature, high-brightness electron sources.}, added-at = {2007-08-07T20:39:21.000+0200}, author = {Kock, F. A. M. and Garguilo, J. M. and Brown, Billyde and Nemanich, R. J.}, biburl = {https://www.bibsonomy.org/bibtex/27d8ddf1bafba7201329c79cd3e427b94/essential.beatfinger}, description = {ScienceDirect - Diamond and Related Materials : Enhanced low-temperature thermionic field emission from surface-treated N-doped diamond films}, interhash = {77f12a04ba9f22a167bb3f772e975206}, intrahash = {7d8ddf1bafba7201329c79cd3e427b94}, journal = {Diamond and Related Materials}, keywords = {(CVD) Chemical Diamond Field deposition emission vapor}, note = {doi={10.1016/S0925-9635(02)00006-7}}, number = {3-6}, pages = {774--779}, timestamp = {2007-08-07T20:39:21.000+0200}, title = {Enhanced low-temperature thermionic field emission from surface-treated N-doped diamond films}, url = {http://www.sciencedirect.com/science/article/B6TWV-455VRJS-3/2/d42509d92211dbceebfe6127f8146d85}, volume = 11, year = 2002 }