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Institution

Xiamen University

EducationAmoy, Fujian, China
About: Xiamen University is a education organization based out in Amoy, Fujian, China. It is known for research contribution in the topics: Catalysis & Population. The organization has 50472 authors who have published 54480 publications receiving 1058239 citations. The organization is also known as: Amoy University & Xiàmén Dàxué.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors designed a composite Al2O3-YAG:Ce phosphor ceramic with a unique composite structure, where yellow-emitting YAG-Ce particles are embedded in a non-luminescent Al 2O3 matrix having high thermal conductivity.
Abstract: Solid state laser lighting is a newly emerging technology that combines a blue laser diode (LD) with a yellow-emitting phosphor converter to generate high-brightness white light. Due to high flux irradiation as well as thermal attack from the incident laser, this technology draws a demanding requirement on the thermal performance of the color converter. In this work, we design a Al2O3–YAG:Ce phosphor ceramic with a unique composite structure, where yellow-emitting YAG:Ce particles are embedded in a non-luminescent Al2O3 matrix having high thermal conductivity. The large YAG:Ce particles (5–20 μm) show good crystallinity and a high external quantum efficiency of 76% (upon 460 nm excitation) while the fine Al2O3 grains (0.5–2 μm) contribute to the superior in-line transmittance of 55% at 800 nm by minimizing the birefringence related scattering. The phosphor ceramic exhibits a high thermal conductivity of 18.5 W m−1 K−1 and a remarkable improvement in thermal stability (only an 8% reduction at 200 °C). When irradiated under 445 nm blue laser diodes, the phosphor ceramic shows no luminescence saturation even under a high power density of 50 W mm−2, validating its suitability for high-power solid state laser lighting.

194 citations

Journal ArticleDOI
Xinlei Zheng1, Haiqiang Lin1, Jianwei Zheng1, Xinping Duan1, Youzhu Yuan1 
TL;DR: Wang et al. as discussed by the authors, 2011CBA00508; Natural Science Foundation of China [21173175, 20923004], Research Fund for the Doctoral Program of Higher Education [20110121130002], Program for Changjiang Scholars and Innovative Research Team in University [IRT1036]
Abstract: National Basic Research Program of China [2011CBA00508]; Natural Science Foundation of China [21173175, 20923004]; Research Fund for the Doctoral Program of Higher Education [20110121130002]; Program for Changjiang Scholars and Innovative Research Team in University [IRT1036]

194 citations

Journal ArticleDOI
TL;DR: Upon near-infrared (NIR) laser irradiation, the gold bellflower GBFs, with strong NIR absorption, showed very strong PA response and an ultrahigh photothermal conversion efficiency (η, ∼74%) among the reported photothermal Conversion agents.
Abstract: We present a novel gold bellflower (GBF) platform with multiple-branched petals, prepared by a liquid–liquid–gas triphase interface system, for photoacoustic imaging (PAI)-guided photothermal therapy (PTT). Upon near-infrared (NIR) laser irradiation, the GBFs, with strong NIR absorption, showed very strong PA response and an ultrahigh photothermal conversion efficiency (η, ∼74%) among the reported photothermal conversion agents. The excellent performance in PAI and PTT is mainly attributed to the unique features of the GBFs: (i) multiple-branched petals with an enhanced local electromagnetic field, (ii) long narrow gaps between adjacent petals that induce a strong plasmonic coupling effect, and (iii) a bell-shaped nanostructure that can effectively amplify the acoustic signals during the acoustic propagation. Besides the notable PTT and an excellent PAI effect, the NIR-absorbing GBFs may also find applications in NIR light-triggered drug delivery, catalysis, surface enhanced Raman scattering, stealth, ant...

194 citations

Journal ArticleDOI
TL;DR: In this paper, the mechanism of catalyst deactivation and regeneration was discussed based on the structure-catalytic property relationships. And the authors concluded that during the reaction propane is dehydrogenated to propene by Cr(IV)O4 tetrahedra, which is simultaneously reduced to Cr(III)O6 octahedra.

193 citations

Journal ArticleDOI
TL;DR: In this article, a method of separating variables is effectively implemented for solving a time-fractional telegraph equation (TFTE), and the analytical solution of the TFTE with three kinds of nonhomogeneous boundary conditions, namely, Dirichlet, Neumann and Robin boundary conditions.

193 citations


Authors

Showing all 50945 results

NameH-indexPapersCitations
Zhong Lin Wang2452529259003
Lei Jiang1702244135205
Yang Gao1682047146301
William A. Goddard1511653123322
Rui Zhang1512625107917
Xiaoyuan Chen14999489870
Fuqiang Wang145151895014
Galen D. Stucky144958101796
Shu-Hong Yu14479970853
Wei Huang139241793522
Bin Liu138218187085
Jie Liu131153168891
Han Zhang13097058863
Lei Zhang130231286950
Jian Zhou128300791402
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023248
2022942
20216,782
20205,710
20194,982
20184,057