金属/介质纳米复合材料:设计制备与光子学性能
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- 英文论文题名：Dielectric/Metal Hybrid Nanomaterials: Constructuion and Photonic Application
- 论文作者：李勇军 ; 赵永生
- 英文论文作者：Yong Jun Li ; Yong Sheng Zhao ; Key Laboratory of Photochemistry ; Institute of Chemistry Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院化学研究所光化学实验室;
- 论文关键词：纳米复合材料 ; 光子学 ; 光波导 ; 纳米激光 ; 表面等离子体激元
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：TB383.1;TB33
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：109k
- 原文格式：D
- 会议级别：全国
摘要
金属纳米材料和介质纳米材料各自所具有的优良光子学性能,使二者在新一代微型器件中具有极其广阔的应用前景[1,2]。利用金属和介质材料,设计并构筑纳米复合材料,不仅可以将二者的优势结合在一起,还能形成单独组分所不具备的新的光子学性能。本工作利用液相中介质晶体的生长特点将金属纳米材料与介质晶体集成起来,合成了一系列的金属/介质纳米复合材料,系统研究了材料的生长机理和形貌控制,复合结构体系对光的传播和限域行为,以及复合体系中的介质组分与金属组分之间光子与表面等离子体激元(SPPs)的耦合、激子与SPPs的耦合:选择合适的有机小分子并探索复合材料的制备方法,合成了包埋的树枝状的金属/有机纳米线异质结,研究了光子与SPPs耦合,设计出多信号复用的定向耦合器;优化合成方法,将金属纳米线与具有高增益系数的介质材料制备成纳米结构的异质结体系,研究了相干的激光模式与SPPs的耦合,实现了激光信号的亚波长输出和模式切换。
Metal/dielectric hybrid nanomaterials have attracted increasingly broad research interests, due to their outstanding optical and electronic properties. In a hybrid material system, the merits of both dielectric and metallic materials were combined together. Moreover, these composites could not only maintain the advantages of each component, but also provide new performance. Here, we present the controllable synthesis of metal/dielectric nanostructures via self-assembly of small organic compounds or crystal growth of other materials in the liquid-phase. The growth mechanisms, morphology control, optical confinement and light propagation at subwavelength scale were intensively investigated based on the hybrid systems. Embedded dendritic organic/metal nanowire heterostructures were constructed for the realization of directional coupler based on the process of photon-plasmon coupling, which offers intensive understanding for the manipulation of optical signals and concepts for fabricating nanophotonic devices. Subwavelength output of perovskite lasers was realized by embeding the Ag NWs in perovskite crystals. The coupling between the laser modes and SPPs ensures the efficient output coupling. The orientation-dependent exciton-plasmon coupling was demonstrated in a kind of organic/metal nanowire heterostructures.
Metal/dielectric hybrid nanomaterials have attracted increasingly broad research interests, due to their outstanding optical and electronic properties. In a hybrid material system, the merits of both dielectric and metallic materials were combined together. Moreover, these composites could not only maintain the advantages of each component, but also provide new performance. Here, we present the controllable synthesis of metal/dielectric nanostructures via self-assembly of small organic compounds or crystal growth of other materials in the liquid-phase. The growth mechanisms, morphology control, optical confinement and light propagation at subwavelength scale were intensively investigated based on the hybrid systems. Embedded dendritic organic/metal nanowire heterostructures were constructed for the realization of directional coupler based on the process of photon-plasmon coupling, which offers intensive understanding for the manipulation of optical signals and concepts for fabricating nanophotonic devices. Subwavelength output of perovskite lasers was realized by embeding the Ag NWs in perovskite crystals. The coupling between the laser modes and SPPs ensures the efficient output coupling. The orientation-dependent exciton-plasmon coupling was demonstrated in a kind of organic/metal nanowire heterostructures.
引文
[1]M.Law,D.J.Sirbuly,J.C.Johnson,J.Goldberger,R.J.Saykally,P.D.Yang,Science 2004,305,1269.
[2]Pyayt,A.L.;Wiley,B.;Xia,Y.;Chen,A.;Dalton,L.Nat.Nanotechnol.2008,3,660.
[2]Pyayt,A.L.;Wiley,B.;Xia,Y.;Chen,A.;Dalton,L.Nat.Nanotechnol.2008,3,660.