期刊
NANO LETTERS
卷 10, 期 4, 页码 1194-1197出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl9035274
关键词
Anodized aluminum oxide template; organic semiconductor; conductive scanning force microscopy; nanopillar array
类别
资金
- Deutsche Forschungsgemeinschaft [IRTG 1404]
- Ministry of Education. Science and Technology [400-2008-0230]
A gentle method that combines torsion mode topography imaging with conductive scanning force microscopy is presented. By applying an electrical bias voltage between tip and sample surface, changes in the local sample conductivity can be mapped. The topography and local conductivity variations on fragile free-standing nanopillar arrays were investigated. These samples were fabricated by an anodized aluminum oxide template process using a thermally cross-linked triphenylamine-derivate semicondcutor. The nanoscale characterization method is shown to be nondestructive. Individual nanopillars were clearly resolved in topography and current images that were recorded simultaneously. Local current-voltage characteristics suggest a space-charge limited conduction in the semiconducting nanopillars.
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