Positioning of Quantum Dots into Prestructured Arrays by Polymer Encapsulation

INTRODUCTION Controlled structuring on the length scale of a few nanometers to 1 μm of surfaces and three-dimensional objects is an attractive challenge . Positioning of small objects (e.g. 5 nm in size) in arrays of larger dimensions (e.g. 100 nm) in an efficient manner is of interest, for example, in the context of the addressing and optical properties of single quantum dots located in larger metal structures functioning as a nano-antenna . We have followed the approach of encapsulation of small inorganic particles in polymer particles . This size enlargement can facilitate manipulation of the particles, sensitive inorganic particles can be protected during further manipulation steps , and an interaction of the organic polymer particle surface with pre-structured arrays can be utilized for positioning.