High-efficiency dielectric barrier Xe discharge lamp: theoretical and experimental investigations

Beleznai, Sz; Mihajlik, Gábor; Agod, A; Maros, I.; Juhasz, Robert; Németh, Zsolt; Jakab, László; Richter, Péter

doi:10.1088/0022-3727/39/17/012

Cited by 49 publications

(11 citation statements)

References 38 publications

(60 reference statements)

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“…It is well known that the sheath formed on the sustain electrode of the cathode decreases the uniformity of the discharge, which is related to the discharge efficiency in a conventional ac PDP. 1,2 On the other hand, in this test panel structure, the auxiliary electrode can generate more homogeneous discharges of the sustain pulses. When the discharge of the sustain pulse grows, the cathode sheath formed on the auxiliary electrode is temporally stronger than that formed on the sustain electrode of the cathode.…”

Section: -3mentioning

confidence: 99%

“…However, with the use of microplasma, it is difficult to generate ultraviolet ͑UV͒ rays efficiently due to the mechanism of the discharge compared to bulk plasma used in fluorescent lamps. 1,2 This inefficiency is regarded as the main drawback in ac PDPs and has posed an obstacle to ac PDPs becoming universal display devices. 3 Numerous approaches for improvement of the vacuum UV efficiency of microplasma in ac PDPs have been reported in efforts to resolve this problem.…”

Section: Introductionmentioning

confidence: 99%

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Advanced discharge modes in an ac plasma display with an auxiliary electrode

Lee

Choi

Kim

et al. 2009

Journal of Applied Physics

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The characteristics of advanced discharge modes were investigated through measurements of spatiotemporal infrared emission, discharge current, infrared intensity, and luminous efficacy in an ac plasma display panel with an auxiliary electrode located between scan and common electrodes. Pulse waveforms that included auxiliary pulses applied to the auxiliary electrode after every sustain pulse were used. The proposed advanced discharge modes are as follows: In mode 1, strong discharges are generated by the sustain pulses only, whereas strong discharges are generated by the sustain pulses and a weak discharge is generated by the auxiliary pulse applied after the scan pulse in mode 2. In mode 3-1, strong discharges are generated by the sustain pulses and weak discharges are generated by the auxiliary pulses applied after the scan and common pulses, while all sustain and auxiliary pulses generate discharges having similar intensities in mode 3-2. Mode 1 and mode 2 are efficient modes; the luminous efficacy was improved in mode 1 owing to more homogeneous discharge due to the auxiliary electrode and a priming effect due to the auxiliary pulse. The luminous efficacy was also improved in mode 2, because of decreased power consumption induced by a decrease in wall charges and sustained or increased luminance due to priming particles. Mode 3-1 and mode 3-2 are inefficient modes; the luminous efficacy was reduced in mode 3-1 as a result of a decrease in the luminance due to insufficiently generated priming particles. The luminous efficacy was also reduced in mode 3-2, because of short-coplanar-gap discharges of the sustain pulses. It was found that advanced discharge modes were changed successively from mode 1 to mode 3-2 when sustain or auxiliary pulses of higher voltage were applied. The maximum luminous efficacy can be obtained in mode 1 at a low sustain pulse voltage and in mode 2 at mid and high sustain pulse voltages.

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Section: -3mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced discharge modes in an ac plasma display with an auxiliary electrode

Lee

Choi

Kim

et al. 2009

Journal of Applied Physics

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“…Such SBD plasmas are proposed for numerous frontier applications such as plasma display panels [22], large-scale plasma lamps [23], plasma stealth by microwave absorption [24e26] and aerodynamics drag reduction as plasma actuators [27,28] etc. We have recently reported a comparative study of parallel-plate and planar surface DBD plasma properties [29].…”

Section: Introductionmentioning

confidence: 99%

Observation of self-organized square lattice pattern formation in surface barrier discharge plasma

Srivastava

2016

Journal of Electrostatics

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“…Carman and Mildren [12] found that VUV generation efficiency could reach 61 % using very short voltage pulses through one-dimensional planar fluid modeling. Beleznai et al [13] compared the simulations results of a xenon EUV lamp (75 torr, driven by short voltage pulses) with the experimental data to validate their model using one-dimensional planar fluid modeling with complex plasma chemistry in up to 99 reaction channels. Avtaeva and Kulumbaev [14] have analyzed the difference of simulations between two different chemical reaction processes.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of VUV Emission from a Coaxial Xenon Excimer Ultraviolet Lamp Driven by Distorted Bipolar Square Voltages

Jou

Hung

Chiu

et al. 2011

Contrib. Plasma Phys.

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Enhancement of vacuum UV emission (172 nm VUV) from a coaxial xenon excimer UV lamp (EUV) driven by distorted 50 kHz bipolar square voltages, as compared to that by sinusoidal voltages, is investigated numerically in this paper. A self-consistent radial one-dimensional fluid model, taking into consideration non-local electron energy balance, is employed to simulate the discharge physics and chemistry. The discharge is divided into two three-period portions; these include: the pre-discharge, the discharge (most intense at 172 nm VUV emission) and the post-discharge periods. The results show that the efficiency of VUV emission using the distorted bipolar square voltages is much greater than when using sinusoidal voltages; this is attributed to two major mechanisms. The first is the much larger rate of change of the voltage in bipolar square voltages, in which only the electrons can efficiently absorb the power in a very short period of time. Energetic electrons then generate a higher concentration of metastable (and also excited dimer) xenon that is distributed more uniformly across the gap, for a longer period of time during the discharge process. The second is the comparably smaller amount of "wasted" power deposition by Xe + 2 in the post-discharge period, as driven by distorted bipolar square voltages, because of the nearly vanishing gap voltage caused by the shielding effect resulting from accumulated charges on both dielectric surfaces.

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High-efficiency dielectric barrier Xe discharge lamp: theoretical and experimental investigations

Cited by 49 publications

References 38 publications

Advanced discharge modes in an ac plasma display with an auxiliary electrode

Advanced discharge modes in an ac plasma display with an auxiliary electrode

Observation of self-organized square lattice pattern formation in surface barrier discharge plasma

Enhancement of VUV Emission from a Coaxial Xenon Excimer Ultraviolet Lamp Driven by Distorted Bipolar Square Voltages

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