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Tunable Thickness and Photoluminescence of Bipyramidal Hexagonal B
-NaYF4 Microdisks

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Hexagonal B
-NaYF4 was synthesized as capped bipyramidal microdisks solvothermally from yttria
(Y2O3), sodium fluoride and ammonium hydrogen fluoride. The microdisks are bound by up to eighteen
faces; six {202j3} facets on both the top and bottom of the disk and six radial {101j0} facets around its
central band. The overall morphology and particle size can be modified through change of temperature
or alcoholic solvent, both of which affect the development of the {1010} faces. The photoluminescence
properties of doped microdisks, such as down-conversion in the case of
B-NaYF4:Eu3+ or up-conversion
for B
-NaYF4:Yb3+/Er3+, were investigated in detail. The lifetime and emission of the Eu3+ and Er3+ ions
appear related to the morphology of the host crystals. This system provides an excellent example in the
tuning and optimization of the optical properties of a material through morphological control via facile
change of synthetic conditions.

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Informasi Detail

Judul Seri

Chemistry of Materials

No. Panggil

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Penerbit

Washington, DC : American Chemical Society., 2009

Deskripsi Fisik

Chem. Mater. 2009, 21, 160–168

Bahasa

English

ISBN/ISSN

-

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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