Tuning of copper nanocrystals optical properties with their shapes.
Copper nanocrystals are obtained by chemical reduction of copper ions in mixed reverse micelles. A large excess of reducing agent favors producing a new generation of shaped copper nanocrystals as nanodisks, elongated nanocrystals, and cubes. By using UV-Visible spectroscopy and numerical optical simulations we demonstrate that the optical properties are tuned by the relative proportions of spheres and nanodisks.
Salzemann
C
C
Laboratoire L.M.2.N., U.M.R. C.N.R.S. 7070 Université Pierre et Marie Curie (Paris VI), B.P.52, 4 place Jussieu, F-752 31 Paris Cedex 05, France.
Brioude
A
A
Pileni
M-P
MP