Au-Ag复合纳米阵列的制备及其等离激元共振吸收特性

Au-Ag复合纳米阵列的制备及其等离激元共振吸收特性 Growth and Plasmon Resonant Absorption Properties of Gold-Silver Nanowire Arrays 朱秋霞 ZHU Qiuxia 1 first-author 程自强 CHENG Ziqiang 1 梁珊 LIANG Shan 1 郝中华 HAO Zhonghua 1 王取泉 WANG Ququan 1 武汉大学物理科学与技术学院/人工微结构教育部重点实验室 武汉大学物理科学与技术学院/人工微结构教育部重点实验室 School of Physics and Technology/Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of Education,Wuhan University School of Physics and Technology/Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of Education,Wuhan University 利用二次阳极氧化法在硫酸体系中制备了多孔氧化铝模板,用交流法在模板中沉积了Au-Ag复合纳米阵列,并研究了其表面等离激元共振吸收特性.和单独的Au、Ag纳米线阵列不同,Au-Ag复合纳米阵列的紫外可见吸收光谱中有两个横向吸收峰,一个纵向共振吸收峰.Au-Ag复合纳米阵列的纵向等离共振波长可以通过改变Ag的生长时间进行有效调节.实验结果发现,Au沉积对后续沉积Ag的最佳沉积电压有影响. Gold-Silver nanowire arrays have been fabricated by alternating current（AC） electrodeposition in porous anodic aluminum oxide（AAO） templates prepared in sulfuric acid solution.Optical absorption spectra show that Gold-Silver nanowire arrays have three peaks,which is different from those of single gold and silver nanowire arrays.The position of longitudinal surface plasmon resonant peak of Gold-Silver nanowire arrays is effectively regulated by the deposition time of silver nanowires.And deposition voltage of silver is influenced by the growth of Au section. 氧化铝模板 交流法 Au-Ag复合纳米阵列 等离激元共振吸收 anodic aluminum oxide（AAO） templates alternating current electrodeposition Au-Ag nanowire arrays plasmon resonant absorption 10.14188/j.1671-8836.2013.03.003 TB383.1 国家重点基础研究发展规划（973）项目（2011CB922201）;国家自然科学基金资助项目（1174229） 2013-03-01 2021-04-01 3 59