Pt-acetylides with different end-side groups have been synthesized and incorporated in poly(methylmethacrylate) (PMMA) films for second-order nonlinear optics through high-temperature corona-poling. By using two complementary optical techniques, i.e. in-situ second-harmonic generation (SHG) and angle-resolved spectroscopy, the order parameter and the molecular hyperpolarizability β of the chromophores have been characterized inside the polymer matrix. The relaxation of orientational after order poling fits a bi-exponential equation in agreement with the Debye model for guest/host systems. A comparison with the azo-dye Disperse Red 1 (DR1) is discussed within the two-level model and the role of the platinum moiety for conjugated molecules.

Casalboni, M., Sarcinelli, F., Pizzoferrato, R., D'Amato, R., Furlani, A., Russo, M. (2000). Second-harmonic generation and absorption spectra of platinum organometallic complexes incorporated in PMMA films. CHEMICAL PHYSICS LETTERS, 319(1-2), 107-112.

Second-harmonic generation and absorption spectra of platinum organometallic complexes incorporated in PMMA films

CASALBONI, MAURO;PIZZOFERRATO, ROBERTO;
2000-01-01

Abstract

Pt-acetylides with different end-side groups have been synthesized and incorporated in poly(methylmethacrylate) (PMMA) films for second-order nonlinear optics through high-temperature corona-poling. By using two complementary optical techniques, i.e. in-situ second-harmonic generation (SHG) and angle-resolved spectroscopy, the order parameter and the molecular hyperpolarizability β of the chromophores have been characterized inside the polymer matrix. The relaxation of orientational after order poling fits a bi-exponential equation in agreement with the Debye model for guest/host systems. A comparison with the azo-dye Disperse Red 1 (DR1) is discussed within the two-level model and the role of the platinum moiety for conjugated molecules.
2000
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
Settore FIS/03 - FISICA DELLA MATERIA
English
Physical and Theoretical Chemistry; Spectroscopy; Atomic and Molecular Physics, and Optics
Casalboni, M., Sarcinelli, F., Pizzoferrato, R., D'Amato, R., Furlani, A., Russo, M. (2000). Second-harmonic generation and absorption spectra of platinum organometallic complexes incorporated in PMMA films. CHEMICAL PHYSICS LETTERS, 319(1-2), 107-112.
Casalboni, M; Sarcinelli, F; Pizzoferrato, R; D'Amato, R; Furlani, A; Russo, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/130281
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