Significant Suppression of Photoluminescence in Eu3+ Doped LaPO4 Inverse Opal Photonic Crystals

Abstract:

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Inverse opal photonic crystals of Eu3+ doped LaPO4 (LaPO4: Eu)were prepared by a self-assembly technique in combination with a sol-gel method. In the preparation process, Eu3+ doped LaPO4 precursors were filled into the interstices of the opal template assembled by monodispersive polystyrene microspheres. The polystyrene template was then removed by calcination at 650 °C for 5h, meanwhile, Eu3+doped LaPO4 inverse opal photonic crystal was formed. The photoluminescence (PL) from Eu3+ doped LaPO4 inverse opal photonic crystal was studied. The effect of the photonic stop-band on the spontaneous emission of Eu3+ has been observed in the inverse opal photonic crystals of Eu3+ doped LaPO4. Significant suppression of the emission was detected if the photonic band-gap overlaps with the Eu3+ ions emission band.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

1217-1221

DOI:

10.4028/www.scientific.net/AMR.311-313.1217

Citation:

Z. W. Yang et al., "Significant Suppression of Photoluminescence in Eu3+ Doped LaPO4 Inverse Opal Photonic Crystals", Advanced Materials Research, Vols. 311-313, pp. 1217-1221, 2011

Online since:

August 2011

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Price:

$35.00

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