Journal
APPLIED SURFACE SCIENCE
Volume 256, Issue 21, Pages 6433-6436Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2010.04.030
Keywords
Ferroelectric copolymer thin film; Electron emission; Emission stability
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Funding
- National Natural Science Foundation of China [60671048, 60978052]
- SRF
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Ferroelectric copolymer thin films P(VDF-TrFE) are used as a ferroelectric cathode for investigation of their electron emission properties. This ferroelectric copolymer films with different thicknesses are deposited by spin-coating method, and then the annealing process is carried out to improve the crystallinities of as-deposited copolymer films. The measurement results of ferroelectric electron emission showed that the copolymer P(VDF-TrFE) films had a desired ferroelectric electron emission ability excited at low-voltage pulse, and its peak emission current can reach to be similar to 1.3 mu A when the pulse voltage is 280 V. In addition, the effect of film thickness on electron emission property and emission stability of copolymer thin film P(VDF-TrFE) are discussed. (C) 2010 Elsevier B. V. All rights reserved.
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