Spectroscopic investigations on SrAl2O4 polymorphs

P. Boutinaud; D. Boyer; A. Perthue; R. Mahiou; E. Cavalli; M. G. Brik

doi:10.1016/j.jlumin.2014.11.006

Spectroscopic investigations on SrAl₂O₄ polymorphs

P. Boutinaud^*
, D. Boyer
, A. Perthue
, R. Mahiou
, E. Cavalli
, M. G. Brik

^*Šī darba korespondējošais autors

Université Clermont Auvergne
ICCF
University of Parma
University of Tartu

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

9 Atsauces (Scopus)

Kopsavilkums

Nominally undoped and Eu³⁺ or Eu³⁺-Dy³⁺ doped SrAl₂O₄ powders are prepared using source chemicals of standard grade (99-99.99%) by solid state and sol-gel procedures, in order to vary the proportions of monoclinic (P2₁) and hexagonal (P6₃ and P6₃22) polymorphs in the compounds. Electron spin resonance reveals systematic contamination of the compounds by transition metal ions. The emission properties of the materials are investigated at 77 K upon UV and blue excitations. The optical features are ascribed, for the essential, to Mn⁴⁺ ions. The spectroscopy of this ion in conjunction with X-ray diffraction data and theoretical considerations is used to individuate P6₃22, P6₃ and P2₁ phases in the doped and undoped SrAl₂O₄ powders.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	158-165
Lapu skaits	8
Žurnāls	Journal of Luminescence
Sējums	159
DOIs	https://doi.org/10.1016/j.jlumin.2014.11.006
Publikācijas statuss	Publicēts - marts 2015
Ārēji publicēts	Jā

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title = "Spectroscopic investigations on SrAl2O4 polymorphs",

abstract = "Nominally undoped and Eu3+ or Eu3+-Dy3+ doped SrAl2O4 powders are prepared using source chemicals of standard grade (99-99.99\%) by solid state and sol-gel procedures, in order to vary the proportions of monoclinic (P21) and hexagonal (P63 and P6322) polymorphs in the compounds. Electron spin resonance reveals systematic contamination of the compounds by transition metal ions. The emission properties of the materials are investigated at 77 K upon UV and blue excitations. The optical features are ascribed, for the essential, to Mn4+ ions. The spectroscopy of this ion in conjunction with X-ray diffraction data and theoretical considerations is used to individuate P6322, P63 and P21 phases in the doped and undoped SrAl2O4 powders.",

keywords = "ESR Luminescence, Mn, Polymorphism, SrAlO",

author = "P. Boutinaud and D. Boyer and A. Perthue and R. Mahiou and E. Cavalli and Brik, \{M. G.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

month = mar,

doi = "10.1016/j.jlumin.2014.11.006",

language = "English",

volume = "159",

pages = "158--165",

journal = "Journal of Luminescence",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Spectroscopic investigations on SrAl2O4 polymorphs

AU - Boutinaud, P.

AU - Boyer, D.

AU - Perthue, A.

AU - Mahiou, R.

AU - Cavalli, E.

AU - Brik, M. G.

PY - 2015/3

Y1 - 2015/3

N2 - Nominally undoped and Eu3+ or Eu3+-Dy3+ doped SrAl2O4 powders are prepared using source chemicals of standard grade (99-99.99%) by solid state and sol-gel procedures, in order to vary the proportions of monoclinic (P21) and hexagonal (P63 and P6322) polymorphs in the compounds. Electron spin resonance reveals systematic contamination of the compounds by transition metal ions. The emission properties of the materials are investigated at 77 K upon UV and blue excitations. The optical features are ascribed, for the essential, to Mn4+ ions. The spectroscopy of this ion in conjunction with X-ray diffraction data and theoretical considerations is used to individuate P6322, P63 and P21 phases in the doped and undoped SrAl2O4 powders.

AB - Nominally undoped and Eu3+ or Eu3+-Dy3+ doped SrAl2O4 powders are prepared using source chemicals of standard grade (99-99.99%) by solid state and sol-gel procedures, in order to vary the proportions of monoclinic (P21) and hexagonal (P63 and P6322) polymorphs in the compounds. Electron spin resonance reveals systematic contamination of the compounds by transition metal ions. The emission properties of the materials are investigated at 77 K upon UV and blue excitations. The optical features are ascribed, for the essential, to Mn4+ ions. The spectroscopy of this ion in conjunction with X-ray diffraction data and theoretical considerations is used to individuate P6322, P63 and P21 phases in the doped and undoped SrAl2O4 powders.

KW - ESR Luminescence

KW - Mn

KW - Polymorphism

KW - SrAlO

UR - https://www.scopus.com/pages/publications/84912569665

U2 - 10.1016/j.jlumin.2014.11.006

DO - 10.1016/j.jlumin.2014.11.006

M3 - Article

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SP - 158

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JO - Journal of Luminescence

JF - Journal of Luminescence

ER -