Cathodoluminescence and green-thermoluminescence response of CaSO 4:Dy,P films

J. Roman-Lopez; V. Correcher; J. Garcia-Guinea; T. Rivera; I. B. Lozano

doi:10.1016/j.jlumin.2012.10.020

Cathodoluminescence and green-thermoluminescence response of CaSO ₄:Dy,P films

J. Roman-Lopez, V. Correcher, J. Garcia-Guinea, T. Rivera, I. B. Lozano

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

13 Scopus citations

Abstract

We herein report on the cathodoluminescence (CL) and green- thermoluminescence (TL) emission of CaSO₄:Dy,P films deposited by the spray pyrolysis method at different temperatures. The samples have been previously structurally and chemically characterized by means of Raman spectroscopy and energy dispersive spectroscopy (EDS). The CL spectra show (i) a broad emission band centered at 374 nm that corresponds to the intrinsic emission of (SO₄)^2- and (ii) emission bands centered on 486, 574, 668, 758 nm assigned to the electronic transitions of the Dy ³⁺ ions. The TL glow curves of the films showed three groups of components peaked at around of 98, 152 and 300°C that exhibit a gradual and progressively linear shifting of the T_max as function of T _stop. This TL behavior is related to a continuum in the trap distribution associated with general or multi-order kinetics and involving continuous processes of trapping-detrapping. The activation energy in the range of 0.97-1.53 eV has been estimated using the initial rise method.

Original language	English
Pages (from-to)	89-92
Number of pages	4
Journal	Journal of Luminescence
Volume	135
DOIs	https://doi.org/10.1016/j.jlumin.2012.10.020
State	Published - 2013
Externally published	Yes

Keywords

CaSO:Dy
Cathodoluminescence
Green-thermoluminescence
P films
Spray pyrolysis

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10.1016/j.jlumin.2012.10.020

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@article{852b2c87d162488da871e41eda7621a0,

title = "Cathodoluminescence and green-thermoluminescence response of CaSO 4:Dy,P films",

abstract = "We herein report on the cathodoluminescence (CL) and green- thermoluminescence (TL) emission of CaSO4:Dy,P films deposited by the spray pyrolysis method at different temperatures. The samples have been previously structurally and chemically characterized by means of Raman spectroscopy and energy dispersive spectroscopy (EDS). The CL spectra show (i) a broad emission band centered at 374 nm that corresponds to the intrinsic emission of (SO4)2- and (ii) emission bands centered on 486, 574, 668, 758 nm assigned to the electronic transitions of the Dy 3+ ions. The TL glow curves of the films showed three groups of components peaked at around of 98, 152 and 300°C that exhibit a gradual and progressively linear shifting of the Tmax as function of T stop. This TL behavior is related to a continuum in the trap distribution associated with general or multi-order kinetics and involving continuous processes of trapping-detrapping. The activation energy in the range of 0.97-1.53 eV has been estimated using the initial rise method.",

keywords = "CaSO:Dy, Cathodoluminescence, Green-thermoluminescence, P films, Spray pyrolysis",

author = "J. Roman-Lopez and V. Correcher and J. Garcia-Guinea and T. Rivera and Lozano, {I. B.}",

note = "Funding Information: We acknowledge the financial support of projects CICYT CGL2010-17108 of the Spanish Plan Nacional, I+D+I, CICATA-IPN, CONACyT-M{\'e}xico and PIFI-IPN project No. 20120758 .",

year = "2013",

doi = "10.1016/j.jlumin.2012.10.020",

language = "Ingl{\'e}s",

volume = "135",

pages = "89--92",

journal = "Journal of Luminescence",

issn = "0022-2313",

}

TY - JOUR

T1 - Cathodoluminescence and green-thermoluminescence response of CaSO 4:Dy,P films

AU - Roman-Lopez, J.

AU - Correcher, V.

AU - Garcia-Guinea, J.

AU - Rivera, T.

AU - Lozano, I. B.

N1 - Funding Information: We acknowledge the financial support of projects CICYT CGL2010-17108 of the Spanish Plan Nacional, I+D+I, CICATA-IPN, CONACyT-México and PIFI-IPN project No. 20120758 .

PY - 2013

Y1 - 2013

N2 - We herein report on the cathodoluminescence (CL) and green- thermoluminescence (TL) emission of CaSO4:Dy,P films deposited by the spray pyrolysis method at different temperatures. The samples have been previously structurally and chemically characterized by means of Raman spectroscopy and energy dispersive spectroscopy (EDS). The CL spectra show (i) a broad emission band centered at 374 nm that corresponds to the intrinsic emission of (SO4)2- and (ii) emission bands centered on 486, 574, 668, 758 nm assigned to the electronic transitions of the Dy 3+ ions. The TL glow curves of the films showed three groups of components peaked at around of 98, 152 and 300°C that exhibit a gradual and progressively linear shifting of the Tmax as function of T stop. This TL behavior is related to a continuum in the trap distribution associated with general or multi-order kinetics and involving continuous processes of trapping-detrapping. The activation energy in the range of 0.97-1.53 eV has been estimated using the initial rise method.

AB - We herein report on the cathodoluminescence (CL) and green- thermoluminescence (TL) emission of CaSO4:Dy,P films deposited by the spray pyrolysis method at different temperatures. The samples have been previously structurally and chemically characterized by means of Raman spectroscopy and energy dispersive spectroscopy (EDS). The CL spectra show (i) a broad emission band centered at 374 nm that corresponds to the intrinsic emission of (SO4)2- and (ii) emission bands centered on 486, 574, 668, 758 nm assigned to the electronic transitions of the Dy 3+ ions. The TL glow curves of the films showed three groups of components peaked at around of 98, 152 and 300°C that exhibit a gradual and progressively linear shifting of the Tmax as function of T stop. This TL behavior is related to a continuum in the trap distribution associated with general or multi-order kinetics and involving continuous processes of trapping-detrapping. The activation energy in the range of 0.97-1.53 eV has been estimated using the initial rise method.

KW - CaSO:Dy

KW - Cathodoluminescence

KW - Green-thermoluminescence

KW - P films

KW - Spray pyrolysis

UR - http://www.scopus.com/inward/record.url?scp=84869210220&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2012.10.020

DO - 10.1016/j.jlumin.2012.10.020

M3 - Artículo

SN - 0022-2313

VL - 135

SP - 89

EP - 92

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Cathodoluminescence and green-thermoluminescence response of CaSO ₄:Dy,P films

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Keywords

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