Electron emission induced modifications in amorphous tetrahedral diamondlike carbon
作者:
T. W. Mercer,
N. J. DiNardo,
J. B. Rothman,
M. P. Siegal,
T. A. Friedmann,
L. J. Martinez-Miranda,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 18
页码: 2244-2246
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.121332
出版商: AIP
数据来源: AIP
摘要:
The cold-cathode electron emission properties of amorphous tetrahedral diamondlike carbon are promising for flat-panel display and vacuum microelectronics technologies. The onset of electron emission is, typically, preceded by “conditioning” where the material is stressed by an applied electric field. To simulate conditioning and assess its effect, we combined the spatially localized field and current of a scanning tunneling microscope tip with high-spatial-resolution characterization. Scanning force microscopy shows that conditioning alters surface morphology and electronic structure. Spatially resolved electron-energy-loss spectroscopy indicates that the predominant bonding configuration changes from predominantly fourfold to threefold coordination. ©1998 American Institute of Physics.
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