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The phase discharge and luminescence area characteristics of La 0.5 Sr 0.5 CoO 3 as a cathode
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.10353
Subject(s) - cathode , luminance , luminescence , materials science , plasma , voltage , analytical chemistry (journal) , sputtering , plasma display , electric discharge in gases , optoelectronics , electrical engineering , atomic physics , optics , electrode , chemistry , physics , nanotechnology , thin film , engineering , chromatography , quantum mechanics
Abstract La 0.5 Sr 0.5 CoO 3 was used as a cathode for the first time when a plasma display panel was used on a handheld personal computer. It has favorable sputtering resistance characteristics and stable discharge characteristics in gases. A cathode made of La 0.5 Sr 0.5 CoO 3 has unique electrical characteristics in early phase discharge voltage and luminescence characteristics. The discharge voltage and luminance continue to decrease from the starting value. The discharge and luminescence area shift of the La 0.5 Sr 0.5 CoO 3 were investigated by analysis of a DC plasma panel fabricated as a prototype. It is assumed that the shift in the discharge voltage and luminance are caused by a shift in the discharge and luminance area of the cathode surface, and that the shift of the current density is caused by the surface profile of the cathode particles. In order to elucidate this mechanism, a spherical model was applied to the discharge voltage shift, and the shift of the discharge voltage and luminance was simulated by applying this model to the measured values. © 2011 Wiley Periodicals, Inc. Electron Comm Jpn, 94(8): 12–18, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ecj.10353