Identifying anomalous Doppler resonance effect based on ECE diagnosis in HT-7 tokamak

The principal component analysis has been applied to a data matrix formed by 7 usual substituent constants for 38 substituents. Three factors are able to explain 99.4% cumulative proportion of total variance. Several rotations have been carried out for the first two factors in order to obtain their physical meaning. The first factor is related to the resonance effect, whereas the second one expresses the inductive effect, and both together describe 97.5% cumulative proportion of total variance. Their mutual orthogonality does not directly follow from the rotations carried out. With the help of these factors the substituents are divided into four main classes, and some of them assume a special position.

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Preparation and Photocatalytic Performance for Degradation of Rhodamine B of AgPt/Bi4Ti3O12 Composites

Nanomaterials ◽

10.3390/nano10112206 ◽

2020 ◽

Vol 10 (11) ◽

pp. 2206

Author(s):

Gaoqian Yuan ◽

Gen Zhang ◽

Kezhuo Li ◽

Faliang Li ◽

Yunbo Cao ◽

...

Keyword(s):

Visible Light ◽

Noble Metal ◽

Rhodamine B ◽

Photocatalytic Performance ◽

Bimetallic Nanoparticles ◽

Resonance Effect ◽

Visible Region ◽

Photogenerated Electron ◽

Pt Nanoparticles ◽

Electron Hole

Loading a noble metal on Bi4Ti3O12 could enable the formation of the Schottky barrier at the interface between the former and the latter, which causes electrons to be trapped and inhibits the recombination of photoelectrons and photoholes. In this paper, AgPt/Bi4Ti3O12 composite photocatalysts were prepared using the photoreduction method, and the effects of the type and content of noble metal on the photocatalytic performance of the catalysts were investigated. The photocatalytic degradation of rhodamine B (RhB) showed that the loading of AgPt bimetallic nanoparticles significantly improved the catalytic performance of Bi4Ti3O12. When 0.10 wt% noble metal was loaded, the degradation rate for RhB of Ag0.7Pt0.3/Bi4Ti3O12 was 0.027 min−1, which was respectively about 2, 1.7 and 3.7 times as that of Ag/Bi4Ti3O12, Pt/Bi3Ti4O12 and Bi4Ti3O12. The reasons may be attributed as follows: (i) the utilization of visible light was enhanced due to the surface plasmon resonance effect of Ag and Pt in the visible region; (ii) Ag nanoparticles mainly acted as electron acceptors to restrain the recombination of photogenerated electron-hole pairs under visible light irradiation; and (iii) Pt nanoparticles acted as electron cocatalysts to further suppress the recombination of photogenerated electron-hole pairs. The photocatalytic performance of Ag0.7Pt0.3/Bi4Ti3O12 was superior to that of Ag/Bi4Ti3O12 and Pt/Bi3Ti4O12 owing to the synergistic effect between Ag and Pt nanoparticles.

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Enhanced light trapping in Ge-on-Si-on-insulator photodetector by guided mode resonance effect

Journal of Applied Physics ◽

10.1063/1.5031453 ◽

2018 ◽

Vol 124 (5) ◽

pp. 053101

Author(s):

Zhi Liu ◽

Jietao Liu ◽

Buwen Cheng ◽

Jun Zheng ◽

Chuanbo Li ◽

...

Keyword(s):

Light Trapping ◽

Resonance Effect ◽

Guided Mode ◽

Guided Mode Resonance

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Electrically Induced Liquid–Liquid Phase Transition in a Floating Water Bridge Identified by Refractive Index Variations

Water ◽

10.3390/w13050602 ◽

2021 ◽

Vol 13 (5) ◽

pp. 602

Author(s):

Elmar C. Fuchs ◽

Jakob Woisetschläger ◽

Adam D. Wexler ◽

Rene Pecnik ◽

Giuseppe Vitiello

Keyword(s):

Phase Transition ◽

Refractive Index ◽

Liquid Phase ◽

Pure Water ◽

Resonance Effect ◽

Water Bridge ◽

Liquid Phase Transition ◽

Light Passing ◽

Floating Water Bridge ◽

Set Up

A horizontal electrohydrodynamic (EHD) liquid bridge (also known as a “floating water bridge”) is a phenomenon that forms when high voltage DC (kV·cm−1) is applied to pure water in two separate beakers. The bridge, a free-floating connection between the beakers, acts as a cylindrical lens and refracts light. Using an interferometric set-up with a line pattern placed in the background of the bridge, the light passing through is split into a horizontally and a vertically polarized component which are both projected into the image space in front of the bridge with a small vertical offset (shear). Apart from a 100 Hz waviness due to a resonance effect between the power supply and vortical structures at the onset of the bridge, spikes with an increased refractive index moving through the bridge were observed. These spikes can be explained by an electrically induced liquid–liquid phase transition in which the vibrational modes of the water molecules couple coherently.

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Localized Surface Plasmon Resonance Effect of Gold Nanoparticles - TiO2 as Mesoporous Layer for Perovskite Solar Cells

2020 6th International Conference on Applied System Innovation (ICASI) ◽

10.1109/icasi49664.2020.9426330 ◽

2020 ◽

Author(s):

Zi-Heng Lin ◽

Hsueh-Tao Chou ◽

Tien-Ming Wu ◽

Guan-Yu Lin ◽

Jing-Hua Lu

Keyword(s):

Gold Nanoparticles ◽

Solar Cells ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Localized Surface Plasmon Resonance ◽

Resonance Effect ◽

Perovskite Solar Cells ◽

Localized Surface Plasmon ◽

Surface Plasmon Resonance Effect

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Single particle dual plasmonic effect for efficient organic solar cells

Applied Nanoscience ◽

10.1007/s13204-020-01641-2 ◽

2021 ◽

Author(s):

Adi Prasetio ◽

Soyeon Kim ◽

Muhammad Jahandar ◽

Dong Chan Lim

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Light Absorption ◽

Resonance Effect ◽

Localized Surface Plasmon ◽

Main Role ◽

Charge Generation ◽

One Pot ◽

Wide Range ◽

Light Reflectance

AbstractIncorporating localized surface plasmon resonance (LSPR) into organic solar cells (OSCs) is a popular method for improving the power conversion efficiency (PCE) by introducing better light absorption. In this work, we designed a one-pot synthesis of Ag@SiO2@AuNPs dual plasmons and observed an immense increase in light absorption over a wide range of wavelengths. Ag@SiO2 plays the main role in enhancing light absorption near the ultraviolet band. The silica shell can also further enhance the LSP resonance effect and prevent recombination on the surface of AgNPs. The AuNPs on the Ag@SiO2 shell exhibited strong broad visible-light absorption due to LSP resonance and decreased light reflectance. By utilizing Ag@SiO2@AuNPs, we could enhance the light absorption and photoinduced charge generation, thereby increasing the device PCE to 8.57% and Jsc to 17.67 mA cm−2, which can be attributed to the enhanced optical properties. Meanwhile, devices without LSPR nanoparticles and Ag@SiO2 LSPR only showed PCEs of 7.36% and 8.18%, respectively.

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