Highly improved upconversion luminescence in NaGd(WO4)2:Yb3+/Tm3+inverse opal photonic crystals

Nanoscale ◽  
2015 ◽  
Vol 7 (4) ◽  
pp. 1363-1373 ◽  
Author(s):  
Yunfeng Wang ◽  
Wen Xu ◽  
Shaobo Cui ◽  
Sai Xu ◽  
Ze Yin ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Upconversion Luminescence ◽  
Inverse Opal

Color Tunable and Upconversion Luminescence in Yb-Tm Co-Doped Yttrium Phosphate Inverse Opal Photonic Crystals

2016 ◽  
Vol 16 (4) ◽  
pp. 3739-3743
Author(s):  
Siqin Wang ◽  
Jianbei Qiu ◽  
Qi Wang ◽  
Dacheng Zhou ◽  
Zhengwen Yang
Keyword(s):  
Photonic Crystals ◽  
Upconversion Luminescence ◽  
Reference Sample ◽  
Blue Emission ◽  
Upconversion Emission ◽  
Band Gaps ◽  
Inverse Opal ◽  
Photonic Band Gaps ◽  
Inverse Opals ◽  
Photonic Band

For this paper, YPO4: Tm, Yb inverse opals with the photonic band gaps at 475 nm and 655 nm were prepared by polystyrene colloidal crystal templates. We investigated the influence of photonic band gaps on the Tm-Yb upconversion emission which was in the YPO4: Tm Yb inverse opal photonic crystals. Comparing with the reference sample, significant suppression of both the blue and red upconversion luminescence of Tm3+ ions were observed in the inverse opals. The color purity of the blue emission was improved in the inverse opal by the suppression of red upconversion emission. Additionally, mechanism of upconversion emission in the inverse opal was discussed. We believe that the present work will be valuable for not only the foundational study of upconversion emission modification but also the development of new optical devices in upconversion lighting and display.

Slow light enhanced near infrared luminescence in CeO2: Er3+, Yb3+ inverse opal photonic crystals

2015 ◽  
Vol 641 ◽  
pp. 127-131 ◽  
Author(s):  
Zhengwen Yang ◽  
Hangjun Wu ◽  
Jun Li ◽  
Bo Shao ◽  
Jianbei Qiu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Near Infrared ◽  
Slow Light ◽  
Inverse Opal ◽  
Infrared Luminescence

scholarly journals Optically Active Inverse Opal Photonic Crystals

2018 ◽  
Vol 140 (48) ◽  
pp. 16446-16449 ◽  
Author(s):  
Ke Hou ◽  
Wajid Ali ◽  
Jiawei Lv ◽  
Jun Guo ◽  
Lin Shi ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Optically Active ◽  
Inverse Opal

Preparation and photonic bandgap properties of Na1/2Bi1/2TiO3 inverse opal photonic crystals

2009 ◽  
Vol 471 (1-2) ◽  
pp. 241-243 ◽  
Author(s):  
Zhengwen Yang ◽  
Ji Zhou ◽  
Xueguang Huang ◽  
Qin Xie ◽  
Ming Fu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Photonic Bandgap ◽  
Inverse Opal

scholarly journals Photonic Crystals for Plasmonic Photocatalysis

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 827 ◽  
Author(s):  
Tharishinny Raja-Mogan ◽  
Bunsho Ohtani ◽  
Ewa Kowalska
Keyword(s):  
Photocatalytic Activity ◽  
Photonic Crystals ◽  
Localized Surface Plasmon Resonance ◽  
Wide Bandgap ◽  
Charge Carriers ◽  
Localized Surface Plasmon ◽  
Synthesis Methods ◽  
Inverse Opal ◽  
Red Edge ◽  
Bandgap Semiconductors

Noble metal (NM)-modified wide-bandgap semiconductors with activity under visible light (Vis) irradiation, due to localized surface plasmon resonance (LSPR), known as plasmonic photocatalysts, have been intensively studied over the last few years. Despite the novelty of the topic, a large number of reports have already been published, discussing the optimal properties, synthesis methods and mechanism clarification. It has been proposed that both efficient light harvesting and charge carriers’ migration are detrimental for high and stable activity under Vis irradiation. Accordingly, photonic crystals (PCs) with photonic bandgap (PBG) and slow photon effects seem to be highly attractive for efficient use of incident photons. Therefore, the study on PCs-based plasmonic photocatalysts has been conducted, mainly on titania inverse opal (IO) modified with nanoparticles (NPs) of NM. Although, the research is quite new and only several reports have been published, it might be concluded that the matching between LSPR and PBG (especially at red edge) by tuning of NMNPs size and IO-void diameter, respectively, is the most crucial for the photocatalytic activity.

Enhanced rare earth photoluminescence in inverse opal photonic crystals and its application for pH sensing

2016 ◽  
Vol 27 (40) ◽  
pp. 405202 ◽  
Author(s):  
Yongsheng Zhu ◽  
Shaobo Cui ◽  
Yinhua Wang ◽  
Mao Liu ◽  
Cheng Lu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Photonic Crystals ◽  
Inverse Opal ◽  
Ph Sensing

Highly modified spontaneous emission in NaY(MoO4)2:Yb3+/Er3+ inverse opal photonic crystals

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104862-104869 ◽  
Author(s):  
Shaobo Cui ◽  
Wen Xu ◽  
Yongsheng Zhu ◽  
Xu Chen ◽  
Donglei Zhou ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Spontaneous Emission ◽  
Inverse Opal ◽  
Macroporous Structure

NaY(MoO4)2:Yb3+/Er3+ inverse opal photonic crystals were fabricated and the UCL efficiency of Er3+ was improved due to the periodic macroporous structure.

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