SERS polarization-dependent effects for an ordered 3D plasmonic tilted silver nanorod array

Nanoscale ◽  
2018 ◽  
Vol 10 (17) ◽  
pp. 8106-8114 ◽  
Author(s):  
Renxian Gao ◽  
Yongjun Zhang ◽  
Fan Zhang ◽  
Shuang Guo ◽  
Yaxin Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Nanorod Array ◽  
Polarization Dependence ◽  
Nanorod Arrays ◽  
Simulation Data ◽  
Hexagonal Close Packed

Hexagonal close-packed tilted Ag nanorod arrays that exhibit excellent uniformity and reproducibility were prepared. The polarization dependence of SERS of nanorod array is fundamentally explained by integrating the experimental and theoretical numerical simulation data.

Facile Synthesis of a Porous ZnO Nanorod Array with Enhanced Photocatalysis for Photoelectrochemical Water Splitting Application

2020 ◽  
Vol 20 (6) ◽  
pp. 3512-3518
Author(s):  
Saleh Khan ◽  
Xiao-He Liu ◽  
Xi Jiang ◽  
Qing-Yun Chen
Keyword(s):  
Annealing Temperature ◽  
Zno Nanorods ◽  
Nanorod Array ◽  
Photocurrent Density ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Irradiation Intensity ◽  
Heat Treated ◽  
Positive Effect

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.

Numerical Simulation Study on High-Temperature Ventilated Cavitating Flow Considering the Compressibility of Gases

2012 ◽  
Vol 569 ◽  
pp. 395-399
Author(s):  
Jing Zhao ◽  
Guo Yu Wang ◽  
Yan Zhao ◽  
Yue Ju Liu
Keyword(s):  
Numerical Simulation ◽  
State Equation ◽  
Field Structure ◽  
Cavitating Flow ◽  
Simulation Approach ◽  
Gas Velocity ◽  
Simulation Data ◽  
Ventilated Cavity ◽  
Supercavitating Flow ◽  
Fluctuation Range

A numerical simulation approach of ventilated cavity considering the compressibility of gases is established in this paper, introducing the gas state equation into the calculation of ventilated supercavitating flow. Based on the comparison of computing results and experimental data, we analyzes the differences between ventilated cavitating flow fields with and without considered the compressibility of gases. The effect of ventilation on the ventilated supercavitating flow field structure is discussed considering the compressibility of gases. The results show that the simulation data of cavity form and resistance, which takes the compressibility of gases into account, accord well with the experimental ones. With the raising of ventilation temperature, the gas fraction in the front cavity and the gas velocity in the cavity increase, and the cavity becomes flat. The resistance becomes lower at high ventilation temperature, but its fluctuation range becomes larger than that at low temperature.

Non‐Markovian activated rate processes: Comparison of current theories with numerical simulation data

1986 ◽  
Vol 84 (3) ◽  
pp. 1788-1794 ◽  
Author(s):  
John E. Straub ◽  
Michal Borkovec ◽  
Bruce J. Berne
Keyword(s):  
Numerical Simulation ◽  
Simulation Data ◽  
Rate Processes

An Optimum-Curved Die-Profile for Investment Casting of Turbo Blades

2011 ◽  
Vol 314-316 ◽  
pp. 630-633
Author(s):  
Yi Wei Dong ◽  
Ding Hua Zhang ◽  
Kun Bu ◽  
Yang Qing Dou
Keyword(s):  
Numerical Simulation ◽  
Investment Casting ◽  
Geometric Parameters ◽  
Iteration Algorithm ◽  
Inverse Iteration ◽  
Simulation Data ◽  
Parameterized Modeling ◽  
Dimension Precision ◽  
Die Profile ◽  
The Mean

In order to avoid tremendous modifications of the die cavity for investment casting of turbo blades, this paper proposed an inverse iterative compensation method that adjusts certain geometric parameters to establish the die-profile. The parameterized modeling is achieved by identifying geometric parameters describing the mean camber line; the optimum-curve die-profile can be obtained based on the inverse iteration algorithm. As a result, the dimension precision of turbo blades can be guaranteed. The applicability of this method is validated using numerical simulation data.

Tunable broadband wavelength-selective enhancement of responsivity in ordered Au-nanorod array-modified PbS photodetectors

2018 ◽  
Vol 6 (7) ◽  
pp. 1767-1773 ◽  
Author(s):  
Bing He Xie ◽  
Guang Tao Fei ◽  
Shao Hui Xu ◽  
Xu Dong Gao ◽  
Jun Xi Zhang ◽  
...  
Keyword(s):  
Nanorod Array ◽  
Infrared Region ◽  
Nanorod Arrays ◽  
Selective Enhancement ◽  
High Wavelength

A PbS-based photodetector integrated with ordered Au-nanorod arrays exhibited high wavelength-selective enhancement in the visible and infrared region.

TiO2/graphene/NiFe-layered double hydroxide nanorod array photoanodes for efficient photoelectrochemical water splitting

2016 ◽  
Vol 9 (8) ◽  
pp. 2633-2643 ◽  
Author(s):  
Fanyu Ning ◽  
Mingfei Shao ◽  
Simin Xu ◽  
Yi Fu ◽  
Ruikang Zhang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Charge Separation ◽  
Nanorod Array ◽  
Photoelectrochemical Water Splitting ◽  
Nanorod Arrays ◽  
Highly Efficient ◽  
Oxidation Efficiency ◽  
Double Hydroxide

TiO2/graphene/NiFe-layered double hydroxide nanorod arrays were fabricated as highly efficient photoanodes for photoelectrochemical water splitting with simultaneously enhanced charge separation and water oxidation efficiency.

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