Field Emission Characteristics of Conducting Polymer Films Conditioned by Electric Discharge |
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| Authors: | Guohong LAI Zhenglin LI Lan CHENG Junbiao PENG |
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| Affiliation: | Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | A pure conducting polymer(PANI-CSA)film conditioned by an electric discharge was tentatively utilized as an cathode for emitting electrons under electric fields. The emission of electrons was observed using a phosphor(ZnO:Zn)screen excited by electrons from the conditioned film. The film morphology was investigated using a scanning electron microscope and it was found that undulate whisker-like sites formed on the surface. The emission was presumably due to the undulate whisker-like sites. The field enhancement factor was estimated to be as high as 1150. The electron emitting process of the PANI-CSA film conditioned by electric discharge was also discussed. |
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| Keywords: | Conducting polymer Field emission Electric discharge |
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