Heterogeneous chemiluminescence of crystalline phosphors in products of dissociation of sulfur dioxide

Abstract

A luminescence has been revealed for the first time when SO is oxidized on the Y₂O₂S-Eu surface. Kinetic and spectral characteristics of heterogeneous chemiluminescence (HCL) have been studied. A model explaining the features of HCL has been proposed. In addition to reactions of adsorption, oxidation, and desorption, this model takes into consideration the reactions of the atomic-molecular exchange O + SO₂-L → SO-L + O₂ and dissociation SO₂-L + V_as → SO-L, where L is the lattice symbol, V_as is the vacancy coming to the surface by diffusion. A mechanism of heterogeneous chemiluminescence has been discussed. It comprises the energy transfer to the center of luminescence according to the reaction SO₂ ^e-L + Eu³⁺ → SO₂-L + (Eu³⁺)^e; (Eu³⁺)^e → Eu³⁺ + hv, where SO₂ ^e-L is the electron-excited SO₂-L molecule. The spectrum of HCL Y₂O₂S-Eu is linear being typical of intracenter transitions in the f-shell of Eu³⁺. The lines of CHL are broadened as compared to the lines of photoluminescence.

Original language	English
Pages (from-to)	669-680
Number of pages	12
Journal	Surface Investigation X-Ray, Synchrotron and Neutron Techniques
Volume	16
Issue number	4
Publication status	Published - 2001

ASJC Scopus subject areas

Surfaces and Interfaces

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Styrov, V. V., Tolmatcheva, N. D., Tyurin, Y. I., & Shygalugov, S. H. (2001). Heterogeneous chemiluminescence of crystalline phosphors in products of dissociation of sulfur dioxide. Surface Investigation X-Ray, Synchrotron and Neutron Techniques, 16(4), 669-680.

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title = "Heterogeneous chemiluminescence of crystalline phosphors in products of dissociation of sulfur dioxide",

abstract = "A luminescence has been revealed for the first time when SO is oxidized on the Y2O2S-Eu surface. Kinetic and spectral characteristics of heterogeneous chemiluminescence (HCL) have been studied. A model explaining the features of HCL has been proposed. In addition to reactions of adsorption, oxidation, and desorption, this model takes into consideration the reactions of the atomic-molecular exchange O + SO2-L → SO-L + O2 and dissociation SO2-L + Vas → SO-L, where L is the lattice symbol, Vas is the vacancy coming to the surface by diffusion. A mechanism of heterogeneous chemiluminescence has been discussed. It comprises the energy transfer to the center of luminescence according to the reaction SO2 e-L + Eu3+ → SO2-L + (Eu3+)e; (Eu3+)e → Eu3+ + hv, where SO2 e-L is the electron-excited SO2-L molecule. The spectrum of HCL Y2O2S-Eu is linear being typical of intracenter transitions in the f-shell of Eu3+. The lines of CHL are broadened as compared to the lines of photoluminescence.",

author = "Styrov, {V. V.} and Tolmatcheva, {N. D.} and Tyurin, {Yu I.} and Shygalugov, {S. H.}",

year = "2001",

language = "English",

volume = "16",

pages = "669--680",

journal = "Journal of Surface Investigation",

issn = "1027-4510",

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T1 - Heterogeneous chemiluminescence of crystalline phosphors in products of dissociation of sulfur dioxide

AU - Styrov, V. V.

AU - Tolmatcheva, N. D.

AU - Tyurin, Yu I.

AU - Shygalugov, S. H.

PY - 2001

Y1 - 2001

N2 - A luminescence has been revealed for the first time when SO is oxidized on the Y2O2S-Eu surface. Kinetic and spectral characteristics of heterogeneous chemiluminescence (HCL) have been studied. A model explaining the features of HCL has been proposed. In addition to reactions of adsorption, oxidation, and desorption, this model takes into consideration the reactions of the atomic-molecular exchange O + SO2-L → SO-L + O2 and dissociation SO2-L + Vas → SO-L, where L is the lattice symbol, Vas is the vacancy coming to the surface by diffusion. A mechanism of heterogeneous chemiluminescence has been discussed. It comprises the energy transfer to the center of luminescence according to the reaction SO2 e-L + Eu3+ → SO2-L + (Eu3+)e; (Eu3+)e → Eu3+ + hv, where SO2 e-L is the electron-excited SO2-L molecule. The spectrum of HCL Y2O2S-Eu is linear being typical of intracenter transitions in the f-shell of Eu3+. The lines of CHL are broadened as compared to the lines of photoluminescence.

AB - A luminescence has been revealed for the first time when SO is oxidized on the Y2O2S-Eu surface. Kinetic and spectral characteristics of heterogeneous chemiluminescence (HCL) have been studied. A model explaining the features of HCL has been proposed. In addition to reactions of adsorption, oxidation, and desorption, this model takes into consideration the reactions of the atomic-molecular exchange O + SO2-L → SO-L + O2 and dissociation SO2-L + Vas → SO-L, where L is the lattice symbol, Vas is the vacancy coming to the surface by diffusion. A mechanism of heterogeneous chemiluminescence has been discussed. It comprises the energy transfer to the center of luminescence according to the reaction SO2 e-L + Eu3+ → SO2-L + (Eu3+)e; (Eu3+)e → Eu3+ + hv, where SO2 e-L is the electron-excited SO2-L molecule. The spectrum of HCL Y2O2S-Eu is linear being typical of intracenter transitions in the f-shell of Eu3+. The lines of CHL are broadened as compared to the lines of photoluminescence.

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