Results 171 to 180 of about 7,192 (202)
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Journal of Materials Science: Materials in Electronics, 2017
The article presents the formulas of quadrature frequency resolved spectroscopy (QFRS) on the upconversion photoluminescence (UCPL) of rare-earth (RE) doped materials on the general M-level model. The formulas are derived in matrix-equation form with the first-order perturbation on the rate equations at the M energy-levels of RE ion.
Lukas Strizik +4 more
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The article presents the formulas of quadrature frequency resolved spectroscopy (QFRS) on the upconversion photoluminescence (UCPL) of rare-earth (RE) doped materials on the general M-level model. The formulas are derived in matrix-equation form with the first-order perturbation on the rate equations at the M energy-levels of RE ion.
Lukas Strizik +4 more
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Journal of Luminescence, 2016
Abstract The photoluminescence (PL) from semiconductor quantum dots can show a “PL bright point”, that is the PL from as prepared quantum dots is maximum at a particular size. In this work we show that, for CdTe quantum dots, upconversion photoluminescence (UCPL) originating from nonlinear absorption shows a similar “UCPL bright point”.
S. Ananthakumar +5 more
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Abstract The photoluminescence (PL) from semiconductor quantum dots can show a “PL bright point”, that is the PL from as prepared quantum dots is maximum at a particular size. In this work we show that, for CdTe quantum dots, upconversion photoluminescence (UCPL) originating from nonlinear absorption shows a similar “UCPL bright point”.
S. Ananthakumar +5 more
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Photoluminescence Upconversion Study of GaN Nanowires: Potential for Optical Refrigeration
CLEO: 2015, 2015Up-converted photoluminescence of GaN nanowires is observed at the temperature above 375 K. At 475 K, the mechanism of the photoluminescence was identified as phonon-assisted bandtail emission. Such a phenomenon contributes to optical refrigeration.
Ruolin Chen +4 more
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Investigation on upconversion photoluminescence of Bi3TiNbO9:Er3+:Yb3+ thin films
Journal of Luminescence, 2011Abstract Bi 3 TiNbO 9 :Er 3+ :Yb 3+ (BTNEY) thin films were fabricated on fused silica by pulsed laser deposition. It was demonstrated that different laser fluence and substrate temperature during growth of BTNEY upconversion photoluminescence (UC-PL) samples control the film’s grain size and hence influences the UC-PL properties.
Hengzhi Chen +6 more
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THE ASSEMBLY OF A PHOTOLUMINESCENT NANOCOMPLEX BASED ON UPCONVERSION NANOPARTICLES
2020Over the past two decades, developments in the field of nanobiomedicine have come a long way despite the unresolved hindrances. The creation and development of effective theranostic agents based on nanomaterials are urgent needs of modern medicine. Upconversion nanoparticles (UCNP) appear to be the most promising agents for developing theranostics due ...
E.L. Guryev +6 more
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Upconversion Nanomaterials for Biodetection and Multimodal Bioimaging Using Photoluminescence
2018Lanthanide-doped upconversion nanomaterials are suitable for biological applications because of their near-infrared excitation property. The excitation wavelength is within the first biological window; therefore this can minimize the damage to biological samples for biomedical applications.
Ming-Kiu Tsang +2 more
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ACS Applied Materials & Interfaces
We demonstrate an upconverting plasmonic polarizer (UPP) as an innovative platform that boosts the upconversion photoluminescence (UCPL) intensity and simultaneously modulates its polarization. The UPP features a metal-insulator-metal structure comprising upconversion nanoparticle-embedded SiO2 and silver nanogratings. This UPP is deliberately designed
Namhyeon Heo +6 more
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We demonstrate an upconverting plasmonic polarizer (UPP) as an innovative platform that boosts the upconversion photoluminescence (UCPL) intensity and simultaneously modulates its polarization. The UPP features a metal-insulator-metal structure comprising upconversion nanoparticle-embedded SiO2 and silver nanogratings. This UPP is deliberately designed
Namhyeon Heo +6 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Upconversion Photoluminescence Properties of Er3+-Doped Ca12Al14O33 Aluminate Ceramics
Journal of Electronic Materials, 2022Dan-Wen Zhang +8 more
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Upconversion Photoluminescence in ZrO2:Er3+,Yb3+ Nanophosphors
New Physics: Sae Mulli, 2011Jeong Jung Hyun +6 more
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