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MODEL STUDY OF FEE FROM PLANAR FILMS |
Li Dechang①; Yang Yintang②; Liu Guangjun③; Zhu Changchun④ |
①School of Science Xidian University Xi an 710071 China;②Microelectronics Institute China;③Dept. of Appl. Chem.,Xi an University of Sci. and Tech., Xi an 710066 China;④School of Electronics and Info. Engineering Xi an Jiaotong Univ., Xi an 710049 China |
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Abstract The mechanics of Field Electron Emission (FEE) from planar thin films of wide band-gap have been studied systematically. The basic model is the electron tunneling through the potential barriers at the interfaces, on the other hand the effect of scattering of the crystal lattice and the effect of micro conductive channel on FEE have been taken into consideration. The study result shows that the planar film structure is conformable for FEE cathode, because it has low voltage threshold and small range of energy distribution of the emitted electrons. Since the structure can be easily prepared, and its components are widely selectable, and its surface stability in mechanics and chemistry is outstanding, this structure is an ideal electron emitter.
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Received: 01 April 1999
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