The recently renewed curiosity is strongly fueled by two distinctive characteristics of noble metal nanoparticles compared to their bulk counterparts: i) the presence of plasmon resonances in many nanostructures significantly enhances emission probabilities through the Purcell effect; ii) the high surface-to-volume ratio increases the probability of indirect electronic transitions by ensuring momentum conservation through electron surface interaction. As a result of the former, increased PLQYs between 10 -7 and 10 -5 have been reported