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Highly photoemissive polymer–transition metal complexes based on poly(2‐hydroxyethyl) methacrylate
Author(s) -
Stan Corneliu S,
Coroaba Adina,
Popa Marcel,
Ursu Laura E
Publication year - 2020
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5926
Subject(s) - materials science , methacrylate , polymer , quantum yield , photoluminescence , luminescence , x ray photoelectron spectroscopy , thin film , fourier transform infrared spectroscopy , chemical engineering , fluorescence , copolymer , photochemistry , polymer chemistry , nanotechnology , optoelectronics , chemistry , composite material , optics , engineering , physics
The paper presents several new polymer complexes based on poly(2‐hydroxyethyl) methacrylate (P‐HEMA) and transition metals including Y 3+ , Eu 3+ , Tb 3+ and Dy 3+ . Red‐, green‐, blue‐ and yellow‐emitting polymer complexes with remarkable photoluminescent (PL) properties, high degree of transparency and excellent processability both in bulk and in thin film were prepared and investigated. In the case of the prepared P‐HEMA–Eu 3+ and P‐HEMA–Tb 3+ polymer complexes, divinylbenzene was used as a crosslinker resulting a markedly enhanced PL emission, most probably due to the presence of the benzene rings which improve the efficiency of the energy transfer to the cation emissive centres. The prepared polymer complexes were structurally investigated through Fourier transform infrared and X‐ray photoelectron spectroscopies while atomic force microscopy was used to study the morphology of the prepared thin films. Steady‐state fluorescence spectroscopy and absolute PL quantum yield were used for the investigation of the luminescent properties. The impressive PL emission and the convenience of preparation in bulk or thin films could be important arguments for a wide area of applications ranging from photonic conversion materials in optoelectronic devices (light‐emitting diodes, flat‐panel displays) to full‐colour watermarks on special‐purpose papers or PL inks and coatings. © 2019 Society of Chemical Industry