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Perylene‐Fused, Aggregation‐Free Polycyclic Aromatic Hydrocarbons for Solution‐Processed Distributed Feedback Lasers
Author(s) -
Zou Ya,
Bonal Víctor,
Moles Quintero Sergio,
Boj Pedro G.,
Villalvilla José M.,
Quintana José A.,
Li Guangwu,
Wu Shaofei,
Jiang Qing,
Ni Yong,
Casado Juan,
DíazGarcía María A.,
Wu Jishan
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202004789
Subject(s) - perylene , lasing threshold , photoluminescence , stacking , quantum yield , amplified spontaneous emission , photochemistry , intermolecular force , materials science , laser linewidth , laser , molecule , chemistry , optoelectronics , wavelength , fluorescence , optics , organic chemistry , physics
Perylene‐fused, aggregation‐free polycyclic aromatic hydrocarbons with partial zigzag periphery ( ZY‐01 , ZY‐02 , and ZY‐03 ) were synthesized. X‐ray crystallographic analysis reveals that there is no intermolecular π–π stacking in any of the three molecules, and as a result, they show moderate‐to‐high photoluminescence quantum yield in both solution and in the solid state. They also display the characteristic absorption and emission spectra of perylene dyes. ZY‐01 and ZY‐02 with a nearly planar π‐conjugated skeleton exhibit amplified spontaneous emission (ASE) when dispersed in polystyrene thin films. Solution‐processed distributed feedback lasers have been fabricated using ZY‐01 and ZY‐02 as active gain materials, both showing narrow emission linewidth (<0.4 nm) at wavelengths around 515 and 570 nm, respectively. In contrast, ZY‐03 did not show ASE and lasing, presumably due to its highly twisted backbone, which facilitates nonradiative internal conversion and intersystem crossing.