2014-09-05
输送的情况下，电子弛豫效应对温度和热应力的影响很大；而在计入这一弹道热输送因素时，电子弛豫效应对金薄膜的热应力响应的影响可忽略不计。鉴于实验已明确了金薄膜中能量输送的电子弹道运动效应，可以认为，针对脉宽
We proposed a thin-film absorber based on gold nanoparticles decorated silicon nanowires on thin gold film, with which broadband and enhanced absorption was experimentally demonstrated compared with others without gold nanoparticles or gold film. The high absorption was attributed to not only the top gold nanoparticles, which introduced enhanced light coupling and reduced reflection due to the exciation of surface plasmon polaritons, but also the bottom gold thin film, which greatly suppressed the light transmission.
2017-05-02
Specialized Research Fund for the Doctoral Program of Higher Education （No. 20130101120134）
Centre for Optical and Electromagnetic Research, Zijingang Campus, Zhejiang University, Hangzhou 310058, China,Centre for Optical and Electromagnetic Research, Zijingang Campus, Zhejiang University, Hangzhou 310058, China
FENG Pin,JIANG Lan,LI Xin,RONG Wenlong,ZHANG Kaihu,CAO Qiang
This paper reports a simple, repeatable approach to fabricate large-area, uniform micro/nanostructures by a femtosecond laser. Specially, 20 nm gold films are coated on semiconductor surfaces on which large-area, uniform micro/nanostructures are fabricated by a femtosecond laser. In the case study of silicon, defects and cross-links are significantly reduced in the laser induced surface structures on Au-coated silicon. The good consistency between the scanning lines facilitates the formation of large-area, uniform surface micro/nanostructures. The diffusion of hot electrons in the Au films increases the interfacial carrier densities, which significantly enhances interfacial electron-phonon coupling. High and uniform electron density suppresses the influence of defects on silicon and further makes the coupling field more uniform and thus reduce the impact of laser energy fluctuations, which homogenizes and stabilizes large-area surface micro/nanostructures. In addition, the proposed new approach might exhibit potential applications, especially in the absorption enhancement of materials surfaces, high surface-enhanced Raman scattering and generation of functional surfaces with hydrophobic wetting behaviors.
2014-11-13
National Natural Science Foundation of China （NSFC)）
Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081
2017-01-16
以利用二次阳极氧化法制备了具有纳米孔道的氧化铝模板，并通过改变蚀刻时间实现对氧化铝模板孔道直径的控制。然后通过离子溅射法在氧化铝模板正面沉积形成了金纳米薄膜，还在金薄膜表面涂覆了一层Nafion膜
西南大学本科生科技创新基金项目（20151802002）
西南大学物理科学与技术学院,重庆 400715,西南大学物理科学与技术学院,重庆 400715,西南大学物理科学与技术学院,重庆 400715,西南大学物理科学与技术学院,重庆 400715
#物理学#
本文收录在中国科技论文在线精品论文，2018，11（7）：731-735.
2010-05-13
本文设计了一种基于“扭曲带状结构”的硅基平面式直接甲醇燃料电池组结构，相邻单池之间的串联通过单池间镀有金薄膜的共用双极板来实现，此连接方式能有效的减小电连接部分所占用的空间及接触电阻。利用微机
哈尔滨工业大学微电子中心,哈尔滨工业大学微电子中心,哈尔滨工业大学微电子中心,哈尔滨工业大学微电子中心
#力学#
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