Lasing in crystals based on 7-azaindole-phenylhydrazone organoboron compounds
The development of efficient organic solid-state lasers requires an in-depth understanding between chemical structure, intermolecular interactions in the crystal phase, and optical and electronic properties. This study highlights these closed dependencies in novel 7-azaindole phenylhydrazone derivat...
| Autores: | , , , , , , |
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| Formato: | artículo |
| Estado: | Versión borrador |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Universidad de Jaén |
| Repositorio: | RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén |
| OAI Identifier: | oai:ruja.ujaen.es:10953/7137 |
| Acesso em linha: | https://doi.org/10.1002/adfm.202402859 https://hdl.handle.net/10953/7137 |
| Access Level: | acceso abierto |
| Palavra-chave: | organic solid-state lasers 7-azaindole phenylhydrazone Density Functional Theory organoboron complexes 544 |
| Resumo: | The development of efficient organic solid-state lasers requires an in-depth understanding between chemical structure, intermolecular interactions in the crystal phase, and optical and electronic properties. This study highlights these closed dependencies in novel 7-azaindole phenylhydrazone derivatives and their corresponding boron complexes, by deploying a combined approach of experimental techniques and theoretical calculations (Density Functional Theory and Time-Dependent Density Functional Theory) in the solvated and solid-state phase. Notably, it is found that when these compounds, which are weakly emissive in solution, are processed into crystalline microfibers, they experience a sharp emission enhancement and exhibit laser action at low pump fluence thresholds. This is achieved by partially inhibiting structural relaxation, which drives non-radiative decay, a critical factor for effective lasing, highlighting the potential of these materials for future optoelectronic applications. |
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