Effect of Reactive Gas Dopants on the MgO Surface in AC Plasma Display Panels

Ahearn, W.; Sahni, O.

doi:10.1147/rd.226.0622

Cited by 19 publications

(10 citation statements)

References 4 publications

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“…A hydration reaction produced Mg(OH) 2 clusters on the surfaces of the films. Hydration also occurred in the inner part of the MgO thin film.…”

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

“…Hydration also occurred in the inner part of the MgO thin film. MgO has a serious lack of chemical stability: MgO physically and chemically absorbs moisture, easily forming Mg(OH) 2 [32,33]. The entire hydrated region was observed to be approximately 2 nm in thickness.…”

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

“…We considered that Mg and H 2 O always diffuse inside the films at room temperature in air and that the hydration of MgO causes the secondary electron emission coefficient to decrease, resulting in an increase in discharge voltage in the PDP. From the obtained results, the relationship between the elimination conditions of CO 2 …”

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

“…However, the front plate with MgO is removed from the vacuum chamber after evaporating MgO. The MgO surface is impure and has many molecules as acting getters of gases, for example, H 2 O and CO 2 , and the chemical and physical reactions between the gases and the MgO surface [1] appear to be the main cause of the long-term aging process that stabilizes the discharge voltage in PDPs [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Surface Potential of Magnesium Oxide Thin Films Prepared by Metal Organic Decomposition MOD

Yamamoto

Yoshioka

Nakajima

et al. 2011

Trans. Mat. Res. Soc. Japan

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Magnesium oxide (MgO) thin films are often used as protective layers of dielectrics in an AC-plasma display panel (AC-PDP) to improve the discharge characteristics and lifetime of the panel, because of their physical stability, high transmittance and secondary electron emission coefficient. Conventional MgO thin films which are typically deposited by electron beam deposition in vacuum, act as gas getters in the panel. In this study we investigated the surface morphology, chemical species for consistency and outgassing impurities of protective MgO thin films, along with PDP manufacturing steps, by photoelectron spectroscopy in air (PESA) and Kelvin probe force microscopy (KPFM). We prepared metal oxide films, that is, MgO thin films, on SiO 2 /Si substrates by coating using the metal organic decomposition (MOD) process. High-quality of MgO thin films on SiO 2 /Si substrates were successfully obtained by heating at a temperature of 900. A surface potential was induced on a MgO thin film by ultra violet (UV) light irradiation. KPFM showed that a very high surface potential exists, probably due to the high secondary electron emission from the MgO surface induced by UV light irradiation.

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“…A hydration reaction produced Mg(OH) 2 clusters on the surfaces of the films. Hydration also occurred in the inner part of the MgO thin film.…”

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

Section: -3 Photon-induced Reaction By Kpfm With Uv Irradiationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Surface Potential of Magnesium Oxide Thin Films Prepared by Metal Organic Decomposition MOD

Yamamoto

Yoshioka

Nakajima

et al. 2011

Trans. Mat. Res. Soc. Japan

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show abstract

“…However, the MgO front plate is removed from the vacuum after the deposition of MgO by evaporation. The MgO surface is impure with many molecules reacting with gases, for example, H 2 O and CO 2 , and the chemical and physical reactions between gaseous molecules and the MgO surface [1] appear to be the main cause of the long term aging process, which reduces the stability of the discharge voltage in PDPs [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Outgassing Characteristics of Magnesium Oxide Films grown by Metallo-Organic Decomposition-MOD

Yamamoto

Yoshioka

Hasegawa

2010

Trans. Mat. Res. Soc. Japan

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The duration of gas evacuation before the introduction of discharge gases into the panel is one of the major problems in the production of plasma display panels (PDPs).In this study, the outgassing characteristics during the panel evacuation stage were investigated by Kelvin probe force microscopy (KPFM). The origin of the impurity gases was studied by measuring the outgassed species from each layer comprising a PDP. The dominant species observed during the evacuation of the panel were H 2 O and CO 2 , with water vapor being the most abundant species. When the outgassing characteristics of the panel were compared with those characteristics of the MgO layer of the panel, the material responsible for producing a greater amount of water vapor turned out to be the MgO layer. We prepared epitaxially grown MgO films on Si substrates by metallo-organic decomposition (MOD). The outgassing experiments on single panels also showed that the long outgassing time of a PDP is mostly due to the MgO layer. Therefore, to reduce the gas evacuation time, a controlled atmosphere appears to be required during the deposition of these materials and the storage of the resulting panels. The MgO layer was investigated by mapping the difference in the surface potential between MgO layers with and without H 2 O by KPFM.

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Plasma Displays

Weber

1985

Flat-Panel Displays and CRTs

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Effect of Reactive Gas Dopants on the MgO Surface in AC Plasma Display Panels

Cited by 19 publications

References 4 publications

Surface Potential of Magnesium Oxide Thin Films Prepared by Metal Organic Decomposition MOD

Surface Potential of Magnesium Oxide Thin Films Prepared by Metal Organic Decomposition MOD

Effect of Outgassing Characteristics of Magnesium Oxide Films grown by Metallo-Organic Decomposition-MOD

Plasma Displays

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