Global modeling of a dielectric barrier discharge in Ne–Xe mixtures for an alternating current plasma display panel

Ikeda, Yuichi; Verboncoeur, John P.; Christenson, P. J.; Birdsall, C.K.

doi:10.1063/1.371072

Cited by 52 publications

(33 citation statements)

References 21 publications

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“…12(b) shows the sum of them. Both Xe 2 *( 1 R u þ ) and Xe 2 *( 3 R u þ ) are the precursors of excimer VUV that has the wavelength of 173 nm according to the formulas (20) and (21), and they are generated by the neutral collisions as shown in formulas (19) and (18). Fig.…”

Section: B 2d Simulationsmentioning

confidence: 99%

“…12(b) gives the total density of Xe 2 *( 1 R u þ ) and Xe 2 *( 3 R u þ ) during one full sustain pulse. Because Xe 2 *( 1 R u þ ) and Xe 2 *( 3 R u þ ) cannot be stepwise-excited or stepwise-ionized, 18,25,27 these Xe excimer excitation states are proportional to the excimer VUV emission. Therefore, we conclude that with the increase of Xe partial pressure, not only the time averaged excimer VUV intensity is increased but also the peak intensity.…”

Section: B 2d Simulationsmentioning

confidence: 99%

“…17 Most important for the production of excimer VUV emission of 173 nm are the excimer Xe excitation states Xe 2 *( 1 R u þ ) and Xe 2 *( 3 R u þ ). 18 At the high partial pressure, there are two types of Xe 2 * species: one is Xe 2 *( 3 R u þ ) that are created by the collisions of neutral Xe atoms with Xe metastable states Xe*(1s 5 ), and the other is Xe 2 *( 1 R u þ ) that are generated by collisions of neutral Xe atoms with Xe resonant states Xe*(1s 4 ). A detailed understanding of the excimer VUV radiation generation and its dynamics is essential in order to improve both the luminance and the VUV production efficiency.…”

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confidence: 99%

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Impact of Xe partial pressure on the production of excimer vacuum ultraviolet emission for plasma display panels

Zhu

Zhang

Kajiyama

2012

Journal of Applied Physics

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In this work, the effect of the Xe partial pressure on the excimer vacuum ultraviolet (VUV) emission intensity of the plasma display panels is investigated, both by measuring the spectral emission directly and by two-dimensional simulations. Experimentally, we find that at the high Xe partial pressure levels, there is an supra-linear increase of excimer VUV radiation and that determines the strong increase of luminance at the high pressures and high voltage. Due to the increase of the luminance and the almost unchanged discharge current, the luminous efficacy strongly increases with the Xe partial pressure. In addition, we also investigated the dynamics of the VUV generation, by measuring the decay time of the excimer VUV light as a function of the gas pressure. It is found that the decay time decreases with the increase of gas pressure. The spatial characteristics of the excimer VUV emission are also discussed. Different from the Ne and near-infrared emission, the excimer VUV emission is generated near the surface of the electrodes and increases uniformly on both sides of the anode and cathode (i.e., the bulk plasma region). Most importantly, it is found that the VUV production occurs during the afterglow period, while it is almost zero at the moment of the discharge itself. From the simulations, it can be seen that the Xe2*(3Σu+) excimer species, which are generated from Xe*(1s5), play a dominant role in the excimer VUV emission output at the high Xe partial pressure. The two-dimensional simulations also show that the strong increase of Xe excimer excitation states in the case of high pressure is mainly the result of the high conversion efficiency of the Xe excimer states, especially in the afterglow period. Due to the high conversion efficiency of Xe excitation species to Xe excimer species by the high collision rate in the case of high pressure, there is a strong increase of excimer VUV production, especially from the cathode.

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Section: B 2d Simulationsmentioning

confidence: 99%

Section: B 2d Simulationsmentioning

confidence: 99%

mentioning

confidence: 99%

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Impact of Xe partial pressure on the production of excimer vacuum ultraviolet emission for plasma display panels

Zhu

Zhang

Kajiyama

2012

Journal of Applied Physics

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“…Although many experiences were realized to understand PDPs mechanism [1][2][3] and to give the ways to improve their performances, Modelling is an important tool to provide progress to this research effort. Several models were developed in order to study discharges in plasma display panels, their kinetic and the discharge efficiency [4][5][6][7][8][9]. Many numerical models have been also developed to study the different methods to optimize plasma display panel characteristics, particularly the luminous efficiency [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of particle in cell and fluid models in plasma display panels simulation

Benstâali

Boutarfaïa

2013

EPJ Web of Conferences

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Abstract:In this paper, a particle in cell model (PIC) was developed. We compare the major characteristics of a single discharge obtained from our PIC model and the fluid model. Fluid model uses different approximations as Local field (LFA). The particle in cell (PIC) model, although its costs in time, still an efficient tool to understand a PDP discharge. Even there is some differences as the delay time and the ionization, the discharge still be correctly described as the energy balance.

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“…1,4 -6 Meanwhile, in MgO/Xe/Ne system, the production of many Xe ions has been reported in simulations and experiments. [7][8][9][10][11] Although the number density of Xe ϩ ionized in a discharge plasma is much larger than that of Ne ϩ , the former ions do not unfortunately contribute the Auger neutralization.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of improved efficiency with a diamond coating for a plasma display panel electrode

Matsunaga

Kato

Hatori

et al. 2003

Journal of Applied Physics

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Application of diamond to electrode coating of a plasma display panel (PDP) is evaluated, since we expect diamond to emit much secondary electron due to the Auger neutralization induced by Xe ions. In a conventional magnesium oxide-xenon (MgO/Xe) system, the most abundant Xe+ produced in the discharge does not effectively cause the secondary electron emission, because the condition of the Auger neutralization is not satisfied. In order to increase the efficiency of ultraviolet (UV) radiation, being especially important for engineering, we should avoid such inefficiency. Under suitable conditions in diamond/Xe system the Auger neutralization can occur. Further, if the electron affinity χ is negative, i.e., negative electron affinity (NEA), the condition of the Auger neutralization in diamond/Xe system is sufficiently satisfied. First, we calculate the coefficients of the secondary electron emission on diamond of clean surface or of hydrogenated surface where the dangling bonds are terminated, on the basis of the Hagstrum model. If the NEA with the electron affinity χ=−0.5 is realized, the high ion-induced secondary electron coefficients such as γXe=0.25 and γNe=0.32 are obtained. Next, we carry out a one-dimensional fluid simulation of the electric discharge in which the two secondary electron emission coefficients of Ne and Xe obtained theoretically are set. Results are presented with changing the sustaining voltage, the fraction of Xe, and the duration of the zero-voltage phase. For 10%Xe mixture, it is shown that the efficiency of UV radiation in the diamond coating increases two times higher than that in the MgO coating. An unnecessarily spontaneous breakdown during the zero-voltage phase, which is peculiar to high secondary electron emission materials, is observed. A mechanism of the breakdown is discussed and means to suppress it are proposed. Taking the zero-voltage phase short and increasing the fraction of Xe up to 50%, in comparison with MgO, a maximum improvement of 3.5 times in the efficiency of UV radiation can be performed. The high secondary electron emission due to Xe ion brings about a decrease in the sustaining voltage, and the sustaining voltage can be further lowered by shortening the duration of the zero-voltage phase. The operation with an increase of Xe fraction becomes attainable. The feasibility of the high performance operation on the ac type PDP by utilizing the materials including diamond with high secondary electron emission for Xe is quantitatively shown.

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Global modeling of a dielectric barrier discharge in Ne–Xe mixtures for an alternating current plasma display panel

Cited by 52 publications

References 21 publications

Impact of Xe partial pressure on the production of excimer vacuum ultraviolet emission for plasma display panels

Impact of Xe partial pressure on the production of excimer vacuum ultraviolet emission for plasma display panels

Comparison of particle in cell and fluid models in plasma display panels simulation

Evaluation of improved efficiency with a diamond coating for a plasma display panel electrode

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