RT Journal Article
T1 Ladder-Type Benzene-Perylene Dyes with Efficient LaserProperties in the Near-IR by Detracting/ActivatingLow/High Frequency Vibronic Modes
A1 Díaz-Fernández, Marcos
A1 Farrando-Pérez, Álex
A1 Gordillo Gámez, Fernando
A1 Boj, Pedro G.
A1 Villalvilla Soria, José Moisés
A1 Quintana, José A.
A1 Wan, Yanpei
A1 Aranda, Daniel
A1 Marín-Beloqui, José Manuel
A1 Wu, Jishan
A1 Zen, Zebing
A1 Díaz-García, María A.
A1 Casado-Cordón, Juan
K1 Química física
K1 Fotónica
K1 Espectroscopía
AB Organic lasers are very attractive light sources for various applications, which have propelled the search for organic compounds showing good performance as active laser units. Here, a family of ladder-type oligomers (named as NNR-n with n = 1–4), constructed by benzene and perylene is presented. These molecules show outstanding amplified spontaneous emission properties in terms of threshold and photostability, being particularly noticeably the larger size molecules emitting in the near infrared (NIR) region. The origin of this behavior is elucidated through comprehensive spectroscopic and theoretical characterization investigating the underlying photophysical processes using steady-state absorption and emission measurements at both room temperature and cryogenic conditions, complemented by transient absorption spectroscopy spanning the visible to near-infrared (vis-NIR) regions. The results demonstrate that the excited-state electronic dynamics are governed by high-frequency vibrational modes. The rigid ladder-type structure suppresses low-frequency vibronic coupling modes, thereby significantly reducing internal conversion, which enhances NIR emission by promoting efficient radiative pathways. Finally, distributed feedback lasers have been made to exploit such optical properties resulting in devices with lasing up to 758 nm.
PB Wiley
YR 2025
FD 2025
LK https://hdl.handle.net/10630/40525
UL https://hdl.handle.net/10630/40525
LA eng
NO Díaz-Fernández, M., Farrando Pérez, Á., Gordillo Gámez, F., Boj, P. G., Villalvilla, J. M., Quintana, J. A., Wan, Y., Aranda, D., Marín-Beloqui, J. M., Wu, J., Zeng, Z., Díaz-García, M. A., & Casado, J. (2025). Ladder-type benzene-perylene dyes with efficient laser properties in the near-IR by detracting/activating low/high frequency vibronic modes. Advanced Functional Materials. Advance online publication. https://doi.org/10.1002/adfm.202506356
NO Funding for open access charge: Universidad de Málaga/CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026