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36.2: Distinguished Paper : New Polycrystalline MgO for a Thermally Stable and Fast Delay Time in AC PDP
Author(s) -
Lee MinSuk,
Matulevich Yury,
Kim JaeHyuk,
Chu HeeYoung,
Suh SoonSung,
Kim SukKi,
Choi JongSeo,
Zang DongSik
Publication year - 2006
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2433242
Subject(s) - doping , materials science , crystallite , dopant , instability , thermal stability , lattice (music) , analytical chemistry (journal) , optoelectronics , chemical engineering , chemistry , mechanics , physics , metallurgy , acoustics , chromatography , engineering
Abstract We have extensively studied polycrystalline MgO sources for achieving a thermally stable and fast delay time in AC PDP. The key idea was to improve MgO film properties by doping p‐type, equivalent, and n‐type elements to the MgO matrix. Their behaviors in a gas discharge were tested. Most of them showed severe discharge jitters. By doping Ca, Al, Si, and a particular n‐type element, the discharge instability was greatly reduced, so that the elements were studied in more details. We found that doping of the last element was highly effective in lowering the delay time, improving the thermal stability, and lowering the firing voltage. We proved that the improvement is largely due to the electron emission enhanced by defects in MgO band gap and lattice distortion which is induced by dopants.