Full Spectrum Emission and Hybrid OLEDs from Silicon Nanoparticles

This study demonstrates that in-line etching processes can be created to size the nanoparticles and produce a surface passivation layer. Photoluminescence measurements have been carried out to examine the dry etching process. It is found that the PL of Si nanocrystals (Si-NCs) blueshifts when the dry etching reduces the size of Si-NCs, consistent with the well-know quantum confinement effect. Hence, Si-NCs are considered promising materials for optical applications including light emitting diodes.