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Discharge area constriction of La 0.5 Sr 0.5 CoO 3 as a cathode material
Author(s) -
Ichibakase Tsuyoshi
Publication year - 2011
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10266
Subject(s) - cathode , luminance , brush discharge , materials science , plasma , voltage , electrical engineering , partial discharge , dielectric barrier discharge , sputtering , analytical chemistry (journal) , atomic physics , optoelectronics , optics , chemistry , physics , engineering , nanotechnology , thin film , quantum mechanics , chromatography
La 0.5 Sr 0.5 CoO 3 was employed as a cathode for the first time when plasma display panels were used on handheld personal computers. It has favorable sputtering resistance and stable discharge characteristics in gases. A cathode made from La 0.5 Sr 0.5 CoO 3 has unique electrical characteristics in the period of continuous discharge. Its discharge voltage and luminance shift during an extended discharge, and the discharge voltage continues to increase in the later period of the continuous discharge. The discharge and luminescence area shift of the La 0.5 Sr 0.5 Co0 3 were investigated by an analysis of a DC plasma panel made as a prototype. It is assumed that the discharge voltage and luminance shift were caused by the discharge and luminance area shift of the cathode surface, and that the current density shift was caused by discharge area constriction in the later periods of continuous discharge. In order to ascertain the mechanism, the discharge and luminance area shift process of the cathode surface were examined using a model. © 2010 Wiley Periodicals, Inc. Electron Comm Jpn, 94(1): 43–50, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ecj.10266