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Effect of Annealing on the Morphology,Structure and Photoelectric Properties of AZO/Pt/FTO Trilayer Films

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Acta Metallurgica Sinica(English Letters) 2015年第3期28卷 281-288页

作者： Li-Jing Huang Nai-Fei Ren Bao-Jia Li Ming Zhou School of Materials science and Engineering Jiangsu University jiangsu provincial key laboratory of Center for photon manufacturing science and technology Jiangsu University School of Mechanical Engineering Jiangsu University

Aluminum-doped zinc oxide/platinum/fluorine-doped tin oxide（AZO/Pt/FTO） trilayer films were prepared by sputtering 5-nm-thick Pt layers and 150-nm-thick AZO layers in sequence on commercial FTO *** effects of onestep annealing and layer-by-layer annealing on the morphology,structure and photoelectric properties of the AZO/Pt/FTO trilayer films were comparatively *** is found that the both annealing approaches increased the grain size and improved the crystallinity of the films,leading to enhancement in transmittance and ***,layer-by-layer annealing led to the formation of quasi-continuous or continuous AZO layers,different from the sparsely distributed AZO particles brought about by one-step annealing,resulting in excellent optical and electrical ***,after layer-by-layer annealing at 400 ℃ for both Pt and AZO layers,the AZO/Pt/FTO trilayer film showed an increase in average transmittance from 71.3% to 85.3% and a decrease in sheet resistance from 7.5 to 5.6 Ω/□,leading to the highest figure of merit of 3.64 × 10^（-2） Ω^（-1）.

关键词： Annealing Magnetron sputtering Optical property Electrical property AZO/Pt/FTO trilayer film

Preparation and Spectral Analysis of Gold Nanoparticles Using Magnetron Sputtering and Thermal Annealing

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Journal of Wuhan University of technology(Materials science) 2014年第4期29卷 651-655页

作者：李保家 HUANG Lijing 周明 FAN Xiaomeng MA Ming School of Materials science and Engineering Jiangsu University jiangsu provincial key laboratory of Center for photon manufacturing science and technology Jiangsu University

Gold（Au） nanoparticles were prepared on Au-fi lm-coated K9 glass and silicon substrates by direct current（DC） magnetron sputtering and thermal annealing treatment. The effects of substrate material, annealing temperature, and time on morphologies of Au nanoparticles were investigated, and the formation mechanism of Au nanoparticles was discussed. The experimental results indicate that silicon substrate is more suitable for the formation of Au nanoparticles. On a silicon substrate, Au nanoparticles formed with good spherical shapes at temperature over 700 ℃. It was also found by spectral analysis that the fi eld enhancement factor of the island-shaped Au particles was smaller than that of the granular Au particles; the better the spherical shape as well as the smaller the size and spacing of Au particles, the higher the light absorption rate; the absorption peak had a red shift with increasing particle size and spacing.

关键词： magnetron sputtering annealing Au nanoparticles absorption spectra

Design and testing research of LiDAR for detecting atmospheric turbulence

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Optoelectronics Letters 2025年第3期21卷 172-176页

作者： QIU Duoyang LI Xianyang YANG Hao ZHU Xiaomeng FANG Zhiyuan XU Xiang School of Advanced manufacturing Engineering Hefei University Anhui provincial Engineering technology Research Center of Intelligent Vehicle Control and Integrated Design technology Hefei University science Island Branch of Graduate School University of Science and Technology of China School of Mechanical and Energy Engineering Ningbo Tech University key laboratory of Atmospheric Optics Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Atmospheric turbulence is an important parameter affecting laser atmospheric transmission. This paper reports on a self-developed atmospheric turbulence detection Li DAR system (scanning differential image motion Li DAR(DIM-Li DAR) system). By designing and simulating the optical system of atmospheric turbulence detection Li DAR,the basic optical imaging accuracy has been determined.

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Mechanical Properties and Microstructure of Bionic Non-Smooth Stainless Steel Surface by Laser Multiple Processing

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Journal of Bionic Engineering 2009年第2期6卷 180-185页

作者： Jin-zhong Lu~(1,2) ,Chao-jun Yang~(1,2) ,Lei Zhang~(1,2),Ai-xin Feng ~(1,2) ,Yin-fang Jiang~(1,2)1.School of Mechanical Engineering,jiangsu University,Zhenjiang 212013,P.R.China2.jiangsu provincial key laboratory for science and technology of photon manufacturing,Zhenjiang 212013,P.R.China School of Mechanical Engineering Jiangsu University Zhenjiang P. R. China jiangsu provincial key laboratory for science and technology of photon manufacturing Zhenjiang P. R. China

Laser multiple processing, i.e. laser surface texturing and then Laser Shock Processing (LSP), is a new surface processing technology for the preparation of bionic non-smooth surfaces. Based on engineering bionics, samples of bionic non-smooth surfaces of stainless steel 0Crl 8Ni9 were manufactured in the form of reseau structure by laser multiple processing. The mechanical properties (including microhardness, residual stress, surface roughness) and microstructure of the samples treated by laser multiple processing were compared with those of the samples without LSP The results show that the mechanical properties of these samples by laser multiple processing were clearly improved in comparison with those of the samples without LSP The mechanisms underlying the improved surface microhardness and surface residual stress were analyzed, and the relations between hardness, comnressive residual stress and roughness were also presented.

关键词： laser multiple processing laser surface texturing laser shock processing stainless steel 0Cr18Ni9 microhardness residual stress roughness

Synthesis of Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition

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Journal of Wuhan University of technology(Materials science) 2009年第1期24卷 15-19页

作者：李刚周明 jiangsu key laboratory of Center for photon manufacturing science and technology Jiangsu University School of Automobile and Traffic Engineering Jiangsu University

Single crystal silicon was found to be very beneficial to the growth of aligned carbon nanotubes by chemical vapor deposition with C2H2 as carbon source. A thin film of Ni served as catalyst was deposited on the Si substrate by the K575X Peltier Cooled High Resolution Sputter Coater before growth. The growth properties of carbon nanotubes were studied as a function of the Ni catalyst layer thickness. The diameter, growth rate and areal density of the carbon nanotubes were controlled by the initial thickness of the catalyst layer. Steric hindrance between nanotubes forces them to grow in well-aligned manner at an initial stage of growth. Transmission electron microscope analysis revealed that nanotubes grew by a tip growth mechanism.

关键词： carbon nanombes magnetron sputtering chemical vapor deposition tip-growth

A Comparison in Laser Precision Drilling of Stainless Steel 304 with Nanosecond and Picosecond Laser Pulses

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Chinese Journal of Mechanical Engineering 2014年第5期27卷 972-977页

作者： ZHANG Hongyu DI Jianke ZHOU Ming YAN Yu State key laboratory of Tribology Tsinghua University Center for photon manufacturing science and technology Jiangsu University Corrosion and Protection Center Beijing University of Science and Technology

Precision drilling with picosecond laser has been advocated to significantly improve the quality of micro-holes with reduced recast layer thickness and almost no heat affected ***,a detailed comparison between nanosecond and picosecond laser drilling techniques has rarely been reported in previous *** the present study,a series of micro-holes are manufactured on stainless steel 304 using a nanosecond and a picosecond laser drilling system,*** quality of the micro-holes,e.g.,recast layer,micro-crack,circularity,and conicity,etc,is evaluated by employing an optical microscope,an optical interferometer,and a scanning electron ***,the micro-structure of the samples between the edges of the micro-holes and the parent material is compared following etching *** researching results show that a great amount of spattering material accumulated at the entrance ends of the nanosecond laser drilled *** formation of a recast layer with a thickness of;5μm is detected on the side walls,associated with initiation of *** phenomenon is also observed and the circularity of the micro-holes is rather *** regard to the micro-holes drilled by picosecond laser,the entrance ends,the exit ends,and the side walls are quite smooth without accumulation of spattering material,formation of recast layer and *** circularity of the micro-holes is fairly good without observation of tapering ***,there is no obvious difference as for the micro-structure between the edges of the micro-holes and the parent *** study proposes a picosecond laser helical drilling technique which can be used for effective manufacturing of high quality micro-holes.

关键词： laser drilling nanosecond laser picosecond laser helical drilling recast layer

Design of A Bionic Spudcan and Analysis of Penetration and Extraction Performances for Jack-up Platform

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China Ocean Engineering 2020年第1期34卷 80-88页

作者： GUO Sheng ZHUANG Hong TANG Wen-xian WU Wen-le LIU Qin WANG Yue-yang School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China jiangsu provincial key laboratory of Advanced manufacturing for Marine Mechanical Equipment Jiangsu University of Science and TechnologyZhenjiang 212003China

The mechanisms of soil structure interaction have drawn much attention in the past years in the installation and operation of jack-up platform. A bionic spudcan produced by biomimetic of egg and snail shell is proposed, and the performance of the penetration and extraction are analyzed by numerical method. The geometric contour of egg and snail shell is measured, and its mathematical model is established respectively. According to the structure of existing spudcan of jack-up platform, three kinds of typical biomimetic spudcan are designed. Furthermore, numerical analysis models of biomimetic spudcan are established respectively to study the soil structure interaction mechanism in the process of penetration and extraction, and contrastive analysis of resistance characteristics are carried out. To conclude, the results show that the biomimetic spudcan facilitates the platform installation, and it is also beneficial to the improvement of the bearing capacity of spudcan.

关键词： jack-up platform egg shell snail shell bionic design spudcan soil structure interaction

Buckling of Cassini Oval Pressure Hulls Subjected to External Pressure

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China Ocean Engineering 2019年第4期33卷 503-508页

作者： TANG Wen-xian WANG Wei-min ZHANG Jian WANG Shu-yan jiangsu provincial key laboratory of Advanced manufacturing for Marine Mechanical Equipment Jiangsu University of Science and Technology Zhenjiang 212003 China School of Mechanical Engineering Jiangsu University of Science and Technology Zhenjiang 212003 China

The paper focuses on Cassini oval pressure hulls under uniform external pressure. The Cassini oval pressure hull is proposed based on the shape index of Cassini oval. The buckling of a series of Cassini oval pressure hulls with the shape index of 0.09–0.30 and one spherical pressure hull with the diameter of 2 m is devoted. Such hulls are numerically studied in the case of constant volume, material properties, and wall thickness. The results show that Cassini oval pressure hulls with the shape index of 0.10–0.11 can resist about 4% more external pressure than the spherical one. This deviates from the classical mechanics conclusion that spherical shell is the optimal shape for underwater pressure resistant structures.

关键词： pressure hull Cassini oval shell shape index buckling behaviour external pressure

Nanoscale guiding for cold atoms based on surface plasmons along the tips of metallic wedges

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Chinese Physics B 2013年第7期22卷 173-179页

作者：王正岭唐伟民周明高传玉 Department of Physics Faculty of ScienceJiangsu University Center for photon manufacturing science and technology School of Materials Science and EngineeringJiangsu University State key laboratory of Tribology Tsinghua University

We propose a novel scheme to guide neutral cold atoms in a nanoscale region based on surface plasmons （SPs） of one pair and two pairs of tips of metallic wedges with locally enhanced light intensity and sub-optical wavelength resolution. We analyze the near-field intensity distribution of the tip of the metallic wedge by the FDTD method, and study the total intensity as well as the total potential of optical potentials and van der Waals potentials for 87 Rb atoms in the light field of one pair and two pairs of tips of metallic wedges. It shows that the total potentials of one pair and two pairs of tips of metallic wedges can generate a gravito-optical trap and a dark closed trap for nanoscale guiding of neutral cold atoms. Guided atoms can be cooled with efficient intensity-gradient Sisyphus cooling by blue-detuned light field. This provides an important step towards the generation of hybrid systems consisting of isolated atoms and solid devices.

关键词： nanoscale guiding cold atoms surface plasmons metallic wedges