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Heavily tin-doped indium oxide nano-pyramids as high-performance gas sensor EI SCIE
期刊论文 | 2018 , 8 (11) | AIP ADVANCES
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Abstract :

Heavily Sn-doped In(2)O(3)nano-pyramids with a Sn percentage of 19.97% by weight have been prepared by sputtering technique. The nano-pyramids with smooth facets and a sharp tip have been achieved by deposition on Sn-metal particles, leading to a diameter of similar to 100nm. The gas sensors realized from these pyramids are highly sensitive to ethanol gas, and the sensitivity is about 133.99 against 200ppm ethanol at 250 degrees C. Good sensitivity characteristics have been obtained even at a low temperature of down to 50 degrees C. The high response and low working temperature demonstrate the potential application of heavily Sn-doped In2O3 nano-pyramids for fabricating gas sensors. (C) 2018 Author(s).

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GB/T 7714 Li, Qiang , Zhang, Yuantao , Wang, Zuming et al. Heavily tin-doped indium oxide nano-pyramids as high-performance gas sensor [J]. | AIP ADVANCES , 2018 , 8 (11) .
MLA Li, Qiang et al. "Heavily tin-doped indium oxide nano-pyramids as high-performance gas sensor" . | AIP ADVANCES 8 . 11 (2018) .
APA Li, Qiang , Zhang, Yuantao , Wang, Zuming , Li, Yufeng , Ding, Wen , Wang, Tao et al. Heavily tin-doped indium oxide nano-pyramids as high-performance gas sensor . | AIP ADVANCES , 2018 , 8 (11) .
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Three-Dimensional Anisotropic Microlaser from GaN-Based Self-Bent-Up Microdisk EI Scopus SCIE
期刊论文 | 2018 , 5 (11) , 4259-4264 | ACS Photonics
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Abstract :

Copyright © 2018 American Chemical Society. Microcavities with whispering gallery modes (WGM), usually formed by two-dimensional (2D) circular structures, are significant elements in integrated optics, quantum information, and topological photonics. We report three-dimensional (3D) WGM from self-bent-up microdisks consisting of strain-released AlGaN/GaN bilayers, which provide an extra degree of freedom of the WGM photons in the vertical dimension, in contrast with the 2D WGM whose field mainly distributes in the horizontal plane. Despite the ultrathin and deformed cavity layer, the 3D WGM shows a reasonably high quality factor for GaN-based microdisks (∼1300) and exhibits single mode lasing due to the anisotropic feature of the bent-up disk, a unique advantage over the conventional planar microdisks of the same material and size. Such devices provide altitude dependence of emitting direction and are promising for applications in multilevel integrated photonics circuits.

Keyword :

microdisk self-bent-up device single mode lasing whispering gallery mode wide bandgap microcavity

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GB/T 7714 Li, Yufeng , Feng, Lungang , Li, Feng et al. Three-Dimensional Anisotropic Microlaser from GaN-Based Self-Bent-Up Microdisk [J]. | ACS Photonics , 2018 , 5 (11) : 4259-4264 .
MLA Li, Yufeng et al. "Three-Dimensional Anisotropic Microlaser from GaN-Based Self-Bent-Up Microdisk" . | ACS Photonics 5 . 11 (2018) : 4259-4264 .
APA Li, Yufeng , Feng, Lungang , Li, Feng , Hu, Peng , Du, Mengqi , Su, Xilin et al. Three-Dimensional Anisotropic Microlaser from GaN-Based Self-Bent-Up Microdisk . | ACS Photonics , 2018 , 5 (11) , 4259-4264 .
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ACU Enhancement of WLEDs Realized by Multilayer Phosphor With Convex Shape EI SCIE Scopus
期刊论文 | 2016 , 28 (2) , 111-114 | IEEE PHOTONICS TECHNOLOGY LETTERS | IF: 2.375
WoS CC Cited Count: 4 SCOPUS Cited Count: 3
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Abstract :

A new package structure with three convex phosphor layers is shown to enhance the angular color uniformity based on modeling and experimental verification. The color uniformity has been improved by tailoring the phosphor concentration distribution of the three layers. The experimental measurements indicate that the deviation of angular correlated color temperature (CCT) can be reduced from 152.9, 487.2, and 586.4 K to 51.3, 55.1, and 78.7 K compared with the conventional structure at the average CCT of 4500, 5500, and 6200 K, respectively. Luminous flux and optical output power of LED packages with optimized multilayer phosphor have been measured and are reduced no more than 5% compared with the single phosphor layer packages.

Keyword :

multilayer packaging light-emitting diodes (LEDs) phosphor concentration Angular color uniformity

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GB/T 7714 Zheng, Min , Ding, Wen , Yun, Feng et al. ACU Enhancement of WLEDs Realized by Multilayer Phosphor With Convex Shape [J]. | IEEE PHOTONICS TECHNOLOGY LETTERS , 2016 , 28 (2) : 111-114 .
MLA Zheng, Min et al. "ACU Enhancement of WLEDs Realized by Multilayer Phosphor With Convex Shape" . | IEEE PHOTONICS TECHNOLOGY LETTERS 28 . 2 (2016) : 111-114 .
APA Zheng, Min , Ding, Wen , Yun, Feng , Tian, Zhen-Huan , Li, Qiang , Li, Yu-Feng et al. ACU Enhancement of WLEDs Realized by Multilayer Phosphor With Convex Shape . | IEEE PHOTONICS TECHNOLOGY LETTERS , 2016 , 28 (2) , 111-114 .
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