| Title: |
Benzochalcogenazolo-based N,O-coordinated boron difluoride complexes as gain media for organic solid-state lasers |
| Authors: |
Pytlarz, Radosław; Kutsiy, Stepan; Hotynchan, Andrii; Jean-Woldemar, Enzo; Luboradzki, Roman; Marek-Urban, Paulina; Merklin, Georg; Chénais, Sébastien; Volyniuk, Dmytro; Grazulevicius, Juozas; Durka, Krzysztof; Forget, Sébastien; Potopnyk, Mykhaylo |
| Contributors: |
Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences (PAN); National Polytechnic University of Lviv (LPNU); Laboratoire de Physique des Lasers (LPL); Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord; Warsaw University of Technology Warsaw; Kaunas University of Technology (KTU); ANR-23-CE06-0027,MELODIE,Polymères Émetteurs de Lumière Multifonctionnels pour la réalisation de Lasers et de Diodes Laser Organiques(2023); European Project: 101161573,HORIZON-EIC-2023-PATHFINDERCHALLENGES-01,HORIZON-EIC-2023-PATHFINDERCHALLENGES-01,HiSOPE(2024) |
| Source: |
ISSN: 2050-7526. |
| Publisher Information: |
CCSD; Royal Society of Chemistry |
| Publication Year: |
2025 |
| Collection: |
Université Paris 13: HAL |
| Subject Terms: |
[PHYS]Physics [physics]; [CHIM]Chemical Sciences |
| Description: |
International audience ; Three N,O-coordinated benzochalcogenazolo-based boron difluoride complexes have been designed, synthesized, and spectroscopically characterized using their solutions, solid state, and the films of dye-doped polymers. The structural analysis demonstrated that dyes adopt twisted molecular structures with the torsion angle ranging from 24° to 37°, attributed to the steric effect of the cyano group. The obtained compounds exhibit aggregation-induced emission and blue to cyan emission (455–487 nm) in the solid state with a photoluminescence quantum yield ranging from 21% to 85% and a short excited-state lifetime of 0.80–2.27 ns. These characteristics facilitate the amplified spontaneous emission (ASE) with the progressive reduction in the full width at half maximum observed across the series of benzoxazole → benzothiazole → benzoselenazole derivatives up to 15 nm, 11 nm, and 8 nm, respectively, and also the low ASE threshold values of 18.7–40.3 μJ cm−2. The successful application of the dyes in the fabrication of organic solid-state lasers results in a laser threshold of 46.1 μJ cm−2, 28.0 μJ cm−2, and 58.6 μJ cm−2 for the devices based on benzoxazole, benzothiazole, and benzoselenazole-based boron difluoride complexes, respectively. Our work opens the pathway for a novel class of heavy atom-containing organic laser dyes, which can be used for both organic optically and electrically pumped lasers. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/grantAgreement//101161573/EU/High-Speed Organic Photonics and OptoElecronics/HiSOPE |
| DOI: |
10.1039/D5TC02236C |
| Availability: |
https://hal.science/hal-05214937; https://hal.science/hal-05214937v1/document; https://hal.science/hal-05214937v1/file/d5tc02236c%20%281%29.pdf; https://doi.org/10.1039/D5TC02236C |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.EECF4A79 |
| Database: |
BASE |