Strong coupling and energy funnelling in an electrically conductive organic blend
| Autor: | Shih-Chun Lo, Randy P. Sabatini, Matthew S. Rahme, Ebinazar B. Namdas, Robert Wawrzinek, Sarah K. M. McGregor, Girish Lakhwani |
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| Rok vydání: | 2020 |
| Předmět: |
Photon
Materials science Exciton Physics::Optics 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy law.invention law Materials Chemistry Polariton Condensed Matter::Quantum Gases Condensed Matter::Other business.industry General Chemistry 021001 nanoscience & nanotechnology Laser 0104 chemical sciences 3. Good health Coupling (electronics) Optoelectronics 0210 nano-technology business Lasing threshold Energy (signal processing) Diketopyrrolopyrrole dye |
| Zdroj: | Journal of Materials Chemistry C. 8:11485-11491 |
| ISSN: | 2050-7534 2050-7526 |
| Popis: | Strong coupling between an exciton and a cavity photon mode offers the promise of lower lasing thresholds, which has attracted interest in organic systems working toward electrically injected lasing. However, current organic polariton lasers have yet to exhibit thresholds beyond the reach of traditional lasers. Here, we investigate the possibility of energy funnelling from host to guest in a polariton system. We construct a material blend containing a dithiophenyl diketopyrrolopyrrole dye with an electrically conductive fluorene–benzothiadiazole co-polymer matrix. We demonstrate that a polariton system can exhibit efficient host to guest energy transfer while maintaining both strong exciton–polariton coupling and polariton emission. We expect that energy funnelling will become an important tool to drive down polariton laser thresholds in organic systems. |
| Databáze: | OpenAIRE |
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