Enhancement of field-excited electron emission from lead-zirconate-titanate ceramic using ultrathin metal electrode

Electron emission from ferroelectric ceramic having ultrathin metal electrode has been observed in vacuum by applying a pair of bipolar pulse voltages. Ultrathin metal film was deposited on lead-zirconate-titanate (PZT) ceramic plate to enhance electron emission. The amount of emitted charge in the...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1995, Vol.34 (9B), p.5471-5474
Main Authors: KURATANI, Y, OMURA, S, OKUYAMA, M, HAMAKAWA, Y
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Electron and ion emission by liquids and solids
impact phenomena
Exact sciences and technology
Field emission, ionization, evaporation, and desorption
Niobates, titanates, tantalates, pzt ceramics, etc
Physics
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Summary:Electron emission from ferroelectric ceramic having ultrathin metal electrode has been observed in vacuum by applying a pair of bipolar pulse voltages. Ultrathin metal film was deposited on lead-zirconate-titanate (PZT) ceramic plate to enhance electron emission. The amount of emitted charge in the sample using the ultrathin metal film could increase to about 4 times that in the sample using a conventional electrode. Further electron emission could be observed even by impressing an unipolar pulse of negative voltage.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.34.5471