项目名称: 金属纳米颗粒超晶体中的电子输运性能研究
项目编号: No.11304238
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 杨鹏
作者单位: 西安电子科技大学
项目金额: 30万元
中文摘要: 精细自组装的纳米颗粒膜(称为超晶体)是一种潜在的具有可调控物理性能的新型材料,可应用于新一代纳米电子器件的制作。对金纳米颗粒超晶体电子学性能的扫描隧道显微术研究表明,超晶体中纳米颗粒层数是影响其电学性能的重要参数。但是目前尚不能够精确控制超晶体生长的层数,从而影响了对其电子输运机理使用扫描隧道显微术进行深入定量研究。因而,在此拟运用接触电极方法,使用微电子光刻技术制作接触电极,然后采用郎缪尔制膜技术在制作好电极的基片上进行纳米颗粒层数可控地生长金属纳米颗粒超晶体。在给定膜厚的情况下,通过改变接触电极间距,从而改变电极之间横向的纳米颗粒的层数,即遂穿节的数量,进而达到对金属纳米颗粒超晶体中电子输运性能进行深入的定量研究。
中文关键词: 纳米颗粒;测试电极;光电材料;超晶体;薄膜
英文摘要: Well-defined self-organized nanoparticles, called superlattice, are expected to have tunable physical properties, which can be useful to fabricate the innovative electronic devices. The scanning tunneling microscopy and spectroscopy studies show that the thickness of superlattice, i.e., number of nanoparticle layers in the superlattice, is crucial to the electronic properties. However, it is difficult to control pricisely the number of nanoparticle layers in the superlattice for electronic measurement. Here we propose to deposite the nanoparticles layer by layer onto the substrate with electrodes to form superlattice. With given thickness, the number of tunneling junctions is modified by varying the distance between electrodes. Like this, the electron transport in such superlattices can be studied quantitively.
英文关键词: Nanoparticles;electrodes;photoelectronic materials;supracrystals;thin film