Repozytorium

Development of Nd3+ -doped monoclinic dimolybdates La2Mo2O9 as optical materials.

Autorzy

Małgorzata Guzik

Magdalena Bieza

Elżbieta Tomaszewicz

Yannick Guyot

Georges Boulon

Rok wydania

2014

Czasopismo

Zeitschrift für Naturforschung Section B: A Journal of Chemical Sciences

Numer woluminu

69

Strony

193-204

DOI

10.5560/ZNB.2014-3290

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

The work presented is mainly focused on synthesis and study of structural and optical properties of microcrystalline Nd3+-doped monoclinic dilanthanum dimolybdate at both room and cyrogenic temperatures (4K and 77 K). These compounds might be useful for application in the future as optical materials and also as transparent ceramics when the structure is cubic. The Nd3+-doped phases with monoclinic structure (α-form, space group P21, unit cell parameters a = 7:1426, b = 7:1544, c = 7:1618 Å and β = 89:538°) were observed for a concentration of the optically active ions equal to 5%. When the concentration of the Nd3+ ions is higher than 15%, a cubic structure is formed (β-form, space group P213, with the lattice parameter a = 7:155±0:005 Å). A series of Nd3+- doped La2Mo2O9 phases with different concentration of Nd3+ were prepared using conventional solid-state reactions. The formation of phase-pure Nd3+-doped La2Mo2O9 has been monitored by powder X-ray diffraction, DSC, SEM, Raman, and FT-IR absorption techniques. High-resolution absorption and emission spectra, as well as the dynamics of the Nd3+ excited states characterized by decay time measurements were recorded from room temperature to 4 K. At least two slightly different crystallographic sites are available for the Nd3+ ions. First results show that this new Nd3+-doped monoclinic La2Mo2O9 molybdate phosphor is promising for applications of ultra-short pulse lasers.

Słowa kluczowe

Nd 3+ emission, Monoclinic System, Molybdates, Near-infrared Luminescence, Powder Lasers

Licencja otwartego dostępu

CC-BY-NC-ND

Licencja ta zezwala na rozpowszechnianie, przedstawianie i wykonywanie utworu jedynie w celach niekomercyjnych oraz pod warunkiem zachowania go w oryginalnej postaci (nie tworzenia utworów zależnych). Jest to najbardziej restrykcyjna z licencji.

Pełny tekst licencji: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode

Adres publiczny

http://dx.doi.org/10.5560/ZNB.2014-3290

Strona internetowa wydawcy

https://www.degruyter.com

Podobne publikacje
2015

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2011

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