Premium
Photophysical and Lasing Properties of New Analogs of the Boron–dipyrromethene Laser Dye Pyrromethene 567 Incorporated into or Covalently Bounded to Solid Matrices of Poly(methyl methacrylate) ¶
Author(s) -
López Arbeloa F.,
Bañuelos Prieto J.,
López Arbeloa I.,
Costela A.,
GarcíaMoreno I.,
Gómez C.,
AmatGuerri F.,
Liras M.,
Sastre R.
Publication year - 2003
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1562/0031-8655(2003)0780030palpon2.0.co2
Subject(s) - chromophore , lasing threshold , covalent bond , photochemistry , fluorescence , chemistry , polymer chemistry , quantum yield , dye laser , side chain , solvatochromism , methyl methacrylate , methacrylate , materials science , polymer , laser , polymerization , organic chemistry , molecule , optoelectronics , optics , physics , wavelength
The photophysical, lasing and thermostability properties of newly synthesized analogs of the commercial dye pyrromethene 567 (PM567) have been measured in polymeric matrices of poly(methyl methacrylate) both when used as a dopant and when covalently bounded to the polymeric chain. These analogs have an acetoxy or a polymerizable methacryloyloxy group at the end of a polymethylene chain at Position 8 of the PM567 chromophore core. Clear correlations between photophysical and lasing characteristics are observed. Linking chain lengths with three or more methylene units give the highest fluorescence quantum yields (as high as 0.89) and lasing efficiencies (as high as 41%). The covalent linkage of the chromophore to the polymeric chain via the methacryloyloxy group improves the photostability of the PM567 chromophore.