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Conjugated polymers with pyrrole as the conjugated bridge: synthesis, characterization, and two-photon absorption properties
- Source :
- The journal of physical chemistry. B. 115(27)
- Publication Year :
- 2011
-
Abstract
- The synthesis, one- and two-photon absorption (2PA) and emission properties of two novel pyrrole-based conjugated polymers (P1 and P2) are reported. They emitted strong yellow-green and orange fluorescence with fluorescent quantum yields (Φ) of 46 and 33%, respectively. Their maximal 2PA cross sections (δ) measured by the two-photon-induced fluorescence method using femtosecond laser pulses in THF were 2392 and 1938 GM per repeating unit, respectively, indicating that the 2PA chromophores consisting of the triphenylamine with nonplanar structure as the donor and electron-rich pyrrole as the conjugated bridge could be the effective repeating units to enhance the δ values.
- Subjects :
- Materials science
Magnetic Resonance Spectroscopy
Photochemistry
Polymers
Conjugated system
Triphenylamine
Two-photon absorption
Fluorescence
Absorption
chemistry.chemical_compound
Materials Chemistry
Molecule
Pyrroles
Physical and Theoretical Chemistry
Pyrrole
chemistry.chemical_classification
Photons
Molecular Structure
Lasers
Polymer
Chromophore
Surfaces, Coatings and Films
Spectrometry, Fluorescence
chemistry
Subjects
Details
- ISSN :
- 15205207
- Volume :
- 115
- Issue :
- 27
- Database :
- OpenAIRE
- Journal :
- The journal of physical chemistry. B
- Accession number :
- edsair.doi.dedup.....7e4c77f572c7ade5b7fa50a2b3ea1abc