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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313Significant Suppression of Photoluminescence in...

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

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Abstract:

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.

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Advanced Materials and Processes: ADME 2011

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Periodical:

Advanced Materials Research (Volumes 311-313)

Pages:

1217-1221

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.311-313.1217

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Online since:

August 2011

Authors:

Zheng Wen Yang, Ji Zhou, Jian Bei Qiu, Zhi Guo Song, Da Cheng Zhou, Zhao Yi Yin

Keywords:

Inverse Opal, Photoluminescence (PL), Photonic Band Gap, Suppression

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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