单层
材料科学
掠入射小角散射
纳米颗粒
朗缪尔-布洛杰特电影
钴
扫描电子显微镜
铂金
化学工程
纳米技术
分析化学(期刊)
散射
化学
小角中子散射
光学
复合材料
有机化学
中子散射
工程类
催化作用
物理
冶金
作者
Vesna Aleksandrovic,Denis Greshnykh,Igor Randjelovic,Andreas Frömsdorf,Andreas Kornowski,Stephan V. Roth,Christian Klinke,Horst Weller
出处
期刊:ACS Nano
[American Chemical Society]
日期:2008-06-01
卷期号:2 (6): 1123-1130
被引量:125
摘要
The Langmuir-Blodgett technique was utilized and optimized to produce closed monolayers of cobalt-platinum nanoparticles over vast areas. It is shown that sample preparation, "dipping angle", and subphase type have a strong impact on the quality of the produced films. The amount of ligands on the nanoparticles surface must be minimized, the dipping angle must be around 105$^{\circ}$, while the glycol subphase is necessary to obtain nanoparticle monolayers. The achieved films were characterized by scanning electron microscopy (SEM) and grazing incidence x-ray scattering (GISAXS). The electrical properties of the deposited films were studied by direct current (DC) measurements showing a discrepancy to the variable range hopping transport from the granular metal model, and favoring the simple thermal activated charge transport. SEM, GISAXS as well as DC measurements confirm a narrow size distribution and high ordering of the deposited films.
科研通智能强力驱动
Strongly Powered by AbleSci AI