# Role of Auger Recombination in Plasmon Controlled Photoluminescence Kinetics in Metal-Semiconductor Hybrid Nanostructures Source: [Role of Auger Recombination in Plasmon Controlled Photoluminescence Kinetics in Metal-Semiconductor Hybrid Nanostructures]() Collection index: [llms.txt]() Data updated: 2025-10-27T04:04:17.802Z Authors: Sabina Gurung, Asha Singh, J.Jayabalan Published: 2020-08-06T11:39:59.000Z ## Abstract Spectroscopic studies of semiconductor quantum dots (SQDs) addressing the problem of non-radiative carrier losses is vital for the improvement in the efficiency of various light-emitting devices. Various designs of SQDs emitter like doping, forming core-shell and alloying has been attempted to suppress non-radiative recombination. In this article, we show that forming a hybrid with metal nanoparticles (MNP) having localized surface plasmon resonance overlapped with the emission spectrum of SQD, the non-radiative carrier loss via Auger recombination can be mitigated. Using steady-state and time-resolved photoluminescence, it has been shown that when such hybrid is selectively excited well above the bandgap without exciting plasmon, the contribution to fast decay time reduces along with an increase in contributions to longer decay times. A completely reverse kinetics is observed when exciton and plasmon are simultaneously excited. Such control of photoluminescence kinetics by placing MNP near SQD opens up a new method for designing hybrid materials that are well suited for light-emitting devices. ## Recorded benchmark results A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. ## Original sources and implementation [Original paper]() [PDF]()