Cubic and oriented Ag nano-particles by high vacuum evaporation

Ag cubes of uniform size (70nm) and self-assembled into two dimensional arrays are formed by physical vapor deposition. The formation of the Ag cubes depends critically on the substrate composition. While heat dissipation can control the crystallization of Ag islands on surfaces, the thermal conductivity and infrared optical property of the substrate can be tuned by a suitable substrate composition. While evaporation on native SiO<sub>2</sub> on a Si waver leads to the formation of flat islands, the evaporation on a thick SiO <sub>2</sub>/Ag/Si substrate leads to the formation of oriented Ag cubes of narrow size distribution (80-100nm).


Year:
2006
Publisher:
Nano Science and Technology Institute, Cambridge, MA 02139, United States
Keywords:
Note:
CFG SA, 1110 Morges, Switzerland
Compilation and indexing terms, Copyright 2006 Elsevier Inc. All rights reserved
064910294194
Ag cubes
Photonics
Scanning probe microscopy
Substrate composition
Laboratories:




 Record created 2007-04-03, last modified 2018-03-17


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