Back to Search
Start Over
Realization of Single-Crystal Dye Lasers by Taming Charge Transfer in Molecular Self-Assemblies
- Source :
- ACS Nano. 16:12345-12351
- Publication Year :
- 2022
- Publisher :
- American Chemical Society (ACS), 2022.
-
Abstract
- The large library of organic dye molecules offers almost infinite possibilities for laser design, but still faces a great challenge in achieving pure dye aggregate lasers due to intermolecular quenching. Here, we report a kinetically controlled molecular self-assembly strategy to synthesize unconventional dye microcrystals for lasing. By increasing temperature, the dye self-assembly is transformed from thermodynamic to kinetic control. Unlike the thermodynamic microcrystal products incapable of lasing due to intermolecular charge-transfer-mediated excimer formation, the kinetic dye microcrystals have large intermolecular distances and weak intermolecular interactions, supporting highly efficient intramolecular charge-transfer monomer emission and low-threshold lasing. This work demonstrates single-crystal dye lasers, promising to unleash the full potential of laser dyes in solid-state lasers.
- Subjects :
- General Engineering
General Physics and Astronomy
General Materials Science
Subjects
Details
- ISSN :
- 1936086X and 19360851
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- ACS Nano
- Accession number :
- edsair.doi.dedup.....ca4037c7a17ee5d6cdf481023ee60ddd