A study of 173nm light emission from discharge cells in plasma display panel

Abstract

Emission properties of the 173nm lights from the electrical discharge cells of the plasma display panel are investigated. The dimer formation and a theoretical model of 173nm emission are presented. It is shown that the diffusion loss of the excited xenon atoms in the metastable level is one of the most important population depreciation factor of excited xenon atoms. The decay time τd of excited atom number increases from zero, reaches its peak, and then decreases to zero, as the gas pressure p increases from zero, agreeing well with experimental data. A simple analytical expression Y of the total emission intensity is described in terms of the diffusion loss df, the three-body collision η, the gas pressure p, and the xenon mole fraction χ. The emission intensity Y of 173nm photon decreases with an increasing value of parameter df. Moreover, the emission intensity Y increases drastically with an increasing value of the gas pressure p and the xenon mole fraction χ. Results from the theoretical model agree remarkably well with experimental data.

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

“…22 This formula also clearly indicates that the decay time of the excimer VUV is decreased with the increase of pressure, which is coincident with our measurement results. Fig.…”

Excited xenon density and ion-induced secondary electron emission coefficient for vacuum ultraviolet luminous efficiency in alternating current plasma display panel

“…It is also noted that the electric field E ∝ n e ∝γ. Hence the intensities or brightness Y of VUV lines [13,14] and electrical power P 0 could be theoretically expressed by Y ∝n e ν e X e ⁎ σ X e ∝aγn i T e 1/2 exp (−b /γ) and P 0 =IV b ∝ (I e +I i )V b ∝ (1 +γ)n i T e 1/2 ln(1+ 1 /γ), where a and b are coefficients determined by the experimental fitting to the theoretical predictions. It is noted that the luminous efficiency η can finally be expressed in terms of the secondary electron emission coefficient γ by η ∝ aγ exp(−b /γ)/[(1+γ)ln(1 + 1 /γ)].…”

On the role of the II(1/2g) state in spontaneous dissociation of krypton and xenon dimer ions

“…Only the J = 0 rotational quantum numbers are taken into account because the large reduced mass of the heavy rare gas dimer ions leads to a small dependence of the effective potential on J. 3 http://doc.rero.ch (3) For each vibronic level that has a non-negligible population N v (t) we compute the kinetic energy release distribution, i.e., the coefficients for radiative transitions as a function of the final energy in the continuum. (4) For each electronic transition we combine the results of (2) and (3).…”

“…They are ubiquitous in high-pressure plasmas [1]; they are of relevance in VUV rare-gas excimer and ion lasers [2] and plasma display panels [3]. They are crucial to understand the optical properties and dissociation dynamics of rare gas cluster ions [4][5][6][7][8][9][10], and they play a role in the localization of charges in rare gas solids [11].…”