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- W4220867955 abstract "An improvement in random lasers based on a colloidal quantum dot (QD)/graphene-doped polymer was observed and attributed to multiple light-scattering and graphene surface plasmon resonance. The emission characteristics of quantum dots doped with graphene oxide and reduced graphene oxide were compared. The QD/reduced graphene oxide hybrid exhibited a lower laser emission threshold (~460 μJ/cm2). The emission modes and thresholds were strongly dependent on both the graphene doping concentration and the external temperature. Decreased plasmon coupling was the primary reason for lower QD/graphene laser emission with increasing temperature. The optimum reduced graphene oxide concentration was 0.2 wt.%. This work provides a practical approach to optimizing the threshold and stability of random laser devices, with potential applications in displays, sensors, and anti-counterfeiting labels." @default.
- W4220867955 created "2022-04-03" @default.
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- W4220867955 date "2022-03-17" @default.
- W4220867955 modified "2023-10-16" @default.
- W4220867955 title "Plasmonically Enhanced Colloidal Quantum Dot/Graphene Doped Polymer Random Lasers" @default.
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- W4220867955 doi "https://doi.org/10.3390/ma15062213" @default.
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