Luminescence and electron paramagnetic resonance studies of white-light emitting SrS: Pr, F thin film electroluminescent devices

Y. H. Lee; B. K. Ju; T. H. Yeom; D. H. Kim; T. S. Hahn; S. H. Choh; M. H. Oh

doi:10.1063/1.356366

Luminescence and electron paramagnetic resonance studies of white-light emitting SrS: Pr, F thin film electroluminescent devices

Y. H. Lee^*
, B. K. Ju
, T. H. Yeom
, D. H. Kim
, T. S. Hahn
, S. H. Choh
, M. H. Oh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The fluorescence emission and excitation spectra of white-light emitting SrS: Pr, F thin film electroluminescent devices have been investigated. It was determined from the results obtained that the dominant electroluminescence mechanism was that the ionization of Pr³⁺ centers occurs first, then subsequently recombination with electrons occurs, and finally Pr³⁺ center transitions give rise to luminescence. The emission mechanism of SrS: Pr, F seems to be the same as that of a SrS: Pr, K electroluminescent device, except for the appearance of strong peaks around 610-670 nm. The impurity excitation peak in the lower excitation energy, longer-wavelength region in the FL spectrum may be an important factor for the selection of an effective white-light emitting EL material. The electron paramagnetic resonance experiment of SrS: Pr, F was performed on powder and thin film specimens. The hyperfine structure of an isolated Mn²⁺ ion was observed in this SrS: Pr, F thin film. This Mn center which was substituted for Sr, seems to contribute to the strong red emission in the white EL spectrum.

Original language	English
Pages (from-to)	1754-1757
Number of pages	4
Journal	Journal of Applied Physics
Volume	75
Issue number	3
DOIs	https://doi.org/10.1063/1.356366
Publication status	Published - 1994

ASJC Scopus subject areas

General Physics and Astronomy

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@article{6622006dec4f4f7aac7fea928b97d008,

title = "Luminescence and electron paramagnetic resonance studies of white-light emitting SrS: Pr, F thin film electroluminescent devices",

abstract = "The fluorescence emission and excitation spectra of white-light emitting SrS: Pr, F thin film electroluminescent devices have been investigated. It was determined from the results obtained that the dominant electroluminescence mechanism was that the ionization of Pr3+ centers occurs first, then subsequently recombination with electrons occurs, and finally Pr3+ center transitions give rise to luminescence. The emission mechanism of SrS: Pr, F seems to be the same as that of a SrS: Pr, K electroluminescent device, except for the appearance of strong peaks around 610-670 nm. The impurity excitation peak in the lower excitation energy, longer-wavelength region in the FL spectrum may be an important factor for the selection of an effective white-light emitting EL material. The electron paramagnetic resonance experiment of SrS: Pr, F was performed on powder and thin film specimens. The hyperfine structure of an isolated Mn2+ ion was observed in this SrS: Pr, F thin film. This Mn center which was substituted for Sr, seems to contribute to the strong red emission in the white EL spectrum.",

author = "Lee, \{Y. H.\} and Ju, \{B. K.\} and Yeom, \{T. H.\} and Kim, \{D. H.\} and Hahn, \{T. S.\} and Choh, \{S. H.\} and Oh, \{M. H.\}",

year = "1994",

doi = "10.1063/1.356366",

language = "English",

volume = "75",

pages = "1754--1757",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "3",

}

TY - JOUR

T1 - Luminescence and electron paramagnetic resonance studies of white-light emitting SrS

T2 - Pr, F thin film electroluminescent devices

AU - Lee, Y. H.

AU - Ju, B. K.

AU - Yeom, T. H.

AU - Kim, D. H.

AU - Hahn, T. S.

AU - Choh, S. H.

AU - Oh, M. H.

PY - 1994

Y1 - 1994

N2 - The fluorescence emission and excitation spectra of white-light emitting SrS: Pr, F thin film electroluminescent devices have been investigated. It was determined from the results obtained that the dominant electroluminescence mechanism was that the ionization of Pr3+ centers occurs first, then subsequently recombination with electrons occurs, and finally Pr3+ center transitions give rise to luminescence. The emission mechanism of SrS: Pr, F seems to be the same as that of a SrS: Pr, K electroluminescent device, except for the appearance of strong peaks around 610-670 nm. The impurity excitation peak in the lower excitation energy, longer-wavelength region in the FL spectrum may be an important factor for the selection of an effective white-light emitting EL material. The electron paramagnetic resonance experiment of SrS: Pr, F was performed on powder and thin film specimens. The hyperfine structure of an isolated Mn2+ ion was observed in this SrS: Pr, F thin film. This Mn center which was substituted for Sr, seems to contribute to the strong red emission in the white EL spectrum.

AB - The fluorescence emission and excitation spectra of white-light emitting SrS: Pr, F thin film electroluminescent devices have been investigated. It was determined from the results obtained that the dominant electroluminescence mechanism was that the ionization of Pr3+ centers occurs first, then subsequently recombination with electrons occurs, and finally Pr3+ center transitions give rise to luminescence. The emission mechanism of SrS: Pr, F seems to be the same as that of a SrS: Pr, K electroluminescent device, except for the appearance of strong peaks around 610-670 nm. The impurity excitation peak in the lower excitation energy, longer-wavelength region in the FL spectrum may be an important factor for the selection of an effective white-light emitting EL material. The electron paramagnetic resonance experiment of SrS: Pr, F was performed on powder and thin film specimens. The hyperfine structure of an isolated Mn2+ ion was observed in this SrS: Pr, F thin film. This Mn center which was substituted for Sr, seems to contribute to the strong red emission in the white EL spectrum.

UR - https://www.scopus.com/pages/publications/0028382783

U2 - 10.1063/1.356366

DO - 10.1063/1.356366

M3 - Article

AN - SCOPUS:0028382783

SN - 0021-8979

VL - 75

SP - 1754

EP - 1757

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 3

ER -

Luminescence and electron paramagnetic resonance studies of white-light emitting SrS: Pr, F thin film electroluminescent devices

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