“…As stated earlier care should be taken on the spatial effect of PNPs and the fluorophore because, fluorescence from a molecule directly absorbed onto the surface of a PNPs is strongly quenched [3,13] , which could be due to the Foster energy transfer or due to coupling to higher modes which decays faster [14][15][16] . Owing to the potential to control the transition rates between the quantum states, size and ease of incorporation of the PNPs, these are explored in organic electronics devices like organic photovoltaics [17] , organic light emitting devices [18] [19][20][21] , organic photodetectors [22] and organic transistors [23,24] . The optical outcoupling magnitude of the OLEDs does depend on the quantum yield of the fluorophore and hence is easy to investigate the footprint of PEF over the radiative decay path.…”