ArticleNanomaterials (Basel, Switzerland)2020
Dual Amplified Spontaneous Emission and Lasing from Nanographene Films.
Article in Nanomaterials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Reactivatable stimulated emission depletion microscopy using fluorescence-recoverable nanographene.Nature communications · 2025Article
- Article
- Effect of Different Substitutions at the 1,7-Bay Positions of Perylenediimide Dyes on Their Optical and Laser Properties.Molecules (Basel, Switzerland) · 2023Article
- Distributed Feedback Lasers by Thermal Nanoimprint of Perovskites Using Gelatin Gratings.ACS applied materials & interfaces · 2023Article
- Synthesis of zigzag- and fjord-edged nanographene with dual amplified spontaneous emission.Chemical science · 2022Article
- Organic Semiconductor Micro/Nanocrystals for Laser Applications.Molecules (Basel, Switzerland) · 2021Review
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14 authors.
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Abstract
Chemically synthesized zigzag-edged nanographenes (NG) have recently demonstrated great success as the active laser units in solution-processed organic distributed feedback (DFB) lasers. Here, we report the first observation of dual amplified spontaneous emission (ASE) from a large-size NG derivative (with 12 benzenoid rings) dispersed in a polystyrene film. ASE is observed simultaneously at the 685 and 739 nm wavelengths, which correspond to different transitions of the photoluminescence spectrum. Ultrafast pump-probe spectroscopy has been used to ascertain the underlying photophysical processes taking place in the films. DFB lasers, based on these materials and top-layer nanostructured polymeric resonators (i.e., one or two-dimensional surface relief gratings), have been fabricated and characterized. Lasers emitting close to either one of the two possible ASE wavelengths, or simultaneously at both of them, have been prepared by proper selection of the resonator parameters.
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