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.
| 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 |
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ASJC Scopus subject areas
- Surfaces and Interfaces
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Heterogeneous chemiluminescence of crystalline phosphors in products of dissociation of sulfur dioxide. / Styrov, V. V.; Tolmatcheva, N. D.; Tyurin, Yu I.; Shygalugov, S. H.
In: Surface Investigation X-Ray, Synchrotron and Neutron Techniques, Vol. 16, No. 4, 2001, p. 669-680.Research output: Contribution to journal › Article
}
TY - JOUR
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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M3 - Article
AN - SCOPUS:0034957992
VL - 16
SP - 669
EP - 680
JO - Journal of Surface Investigation
JF - Journal of Surface Investigation
SN - 1027-4510
IS - 4
ER -