Effect of high Xe-concentration in a plasma display panel with a SrCaO cold cathode

Journal Article · Sat May 15 00:00:00 EDT 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3372612· OSTI ID:21476242

Uchida, Giichiro; Kajiyama, Hiroshi; Shinoda, Tsutae ^[1]; Uchida, Satoshi ^[2]; Akiyama, Toshiyuki ^[3]

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1. Graduate School of Advanced Science of Matter, Hiroshima University, Higashi-Hiroshima 739-8530 (Japan)
2. Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji 192-0397 (Japan)
3. Advanced PDP Development Center Corporation, Ibaraki 567-0026 (Japan)

We present here measurements of high Xe-contents plasma display panel (PDP) with SrCaO cold cathode. Luminous efficacy ({eta}) shows a two-step increase with Xe-concentration in Ne/Xe gas mixture: {eta} drastically increases up to Xe-concentration of 30% (Xe: 30%), and then attains 5 lm/W at the highest Xe-concentration of Xe: 100%. The high performance PDP with Xe: 100% can be operated at low applied voltage between 230 and 377 V due to the high secondary electron emission from the SrCaO cathode. Emission measurements clearly show the change in discharge characteristics at Xe: 30%, where the discharge changes from a Ne/Xe mixture discharge to an almost pure Xe discharge, and the vacuum ultraviolet (VUV) radiation from the combination of resonance and excimer radiations to only excimer radiation. Theoretical analysis solving Boltzmann equation for electron demonstrates that increasing Xe-concentration enhances the collision frequency for electron impact excitation directly from ground state to lower levels concerned with the VUV radiation, resulting in a drastic increase in luminous efficacy up to Xe: 30%. Also, one-dimensional fluid simulation of a Ne/Xe dielectric barrier discharge clearly shows that a combination of high secondary electron emission cathode and high Xe-concentration is quite effective for high VUV radiation efficiency because it induces a drastic increase in electron-heating efficiency.

• OSTI ID: 21476242
• Journal Information: Journal of Applied Physics, Vol. 107, Issue 10; Other Information: DOI: 10.1063/1.3372612; (c) 2010 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOLTZMANN EQUATION
CALCIUM OXIDES
CATHODES
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRON COLLISIONS
ELECTRON EMISSION
ELECTRONS
EXCITATION
FAR ULTRAVIOLET RADIATION
MIXTURES
NEON
PANELS
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
PLASMA SIMULATION
RESONANCE
STRONTIUM COMPOUNDS
XENON
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COLLISIONS
DIFFERENTIAL EQUATIONS
DISPERSIONS
ELECTRODES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUATIONS
FERMIONS
FLUIDS
GASES
HEATING
INTEGRO-DIFFERENTIAL EQUATIONS
KINETIC EQUATIONS
LEPTONS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
RADIATIONS
RARE GASES
SIMULATION
ULTRAVIOLET RADIATION