Nearly monodispersed perylene nanotablets: Easy fabrication and unique optical properties

Here we describe a simple physical vapor deposition (PVD) method to prepare large quantity of highly monodispersed perylene nanotablets with a deposition-temperature controlled approach. The nanotablets we get are 1 um octagon with 100-200 nm thickness. Confocal microscopic images of the nanotablets show novel yellow emission which is quite different from perylene monomers when excited with a UV light of a mercury lamp. The morphology of the unique perylene nanotablets is significantly affected by the temperature of the deposition substrates. This approach is simple and template free and the as prepared nanotablets possess smooth surface which is important for the potential application in fabricating nanostructure based organic semiconductor nanoelectronic devices.