期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 42, 期 5, 页码 1451-1455出版社
ELSEVIER
DOI: 10.1016/j.physe.2009.11.115
关键词
Cu dendritic nanostructure; Electrochemical deposition; Field emission
资金
- Chinese National Key Basic Research Special Found [2006CB921704]
- NSF of China [60976014]
- Key Basic Research Project of Scientific and Technology Committee of Shanghai [09DJ1400202]
- Specialized Research Fund for the Doctoral Program of Higher Education [20070269016]
Cu dendritic nanostructures were synthesized on ITO glass substructure by electrochemical deposition. SEM images showed that these Cu dendritic nanostuctures revealed a clear and well-defined dendritic fractal structure with a pronounced trunk and highly ordered branches distributed on both sides of the trunk. The diffusion-limited aggregation (DLA) model was used to explain the fractal growth of Cu dendritic nanostructures. Field emission properties of these Cu dendritic nanostructures were measured, which have possessed good performance with the turn-on field of 7.5 V/mu m (defined as the electric field required to be detected at a current density of 0.1 mA/cm(2)) and the field enhancement factor beta of 1094. (C) 2009 Elsevier B.V. All rights reserved.
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