Quantum dots gold nanoparticle layers

We present the observation of a distance-dependent enhancement and quenching of semiconductor nanocrystal photoluminescence near gold colloids. A layer-by-layer polyelectrolyte deposition technique was used for varying the distance between gold nanoparticles and quantum dots. The maximum enhancement by a factor of five is achieved for a 9-layer spacer (11 nm). 

Additional novel particles, including nylon 66, alumina, " gold, garnet, diamond, graphite, polyaniline, and boron nitride nanosheets, and nanoparticles of low molecular weight borate esters, have been introduced to increase ionic conductivities. Boron-doped PDMS has been used as scintillators for thermal neutron detection. Nanowires of ZnO have been inserted into PDMS to give tunable, flexible antireflection layers, and ZnO has also been introduced into such polymers as quantum dots. Similarly, color-tunable luminescent... 

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