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Study on Optical Limiting Composites of Phthalocyanines Doped Inorganic Marix

Author: ChenJianChun
Tutor: ZhanHongBing
School: Fuzhou University
Course: Materials Science
Keywords: Inorganic matrix Phthalocyanine Doping Composite materials Optical limiting
CLC: TB332
Type: Master's thesis
Year: 2004
Downloads: 83
Quote: 1
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Abstract


Metal phthalocyanine complexes is a plane conjugated pi electron structure of macrocyclic complexes. Studies have shown that with good nonlinear optical limiting properties of phthalocyanine complexes in the visible and near-infrared bands. From a practical point of view, select the physical and chemical performance and stability, optical transparency and good inorganic dielectric inorganic matrix was prepared as the carrier of the metal phthalocyanine complexes, phthalocyanine the doped composite solid material, not only the stability of the phthalocyanine itself, but also to achieve The material of the phthalocyanine molecule further device of significance. In this paper, based on the nonlinear theory of optical limiting materials research progress, prospects and facing a major problem. By the sol - gel wet chemical process metal phthalocyanine complexes uniformly doped silica xerogel matrix, active organic molecules at the molecular level in the inorganic matrix composite and structural control. Focuses on the inorganic matrix composite metal phthalocyanine materials preparation technology and its composition, structure and spectral properties of the association, influence and control law, and the performance of optical limiting application background to expand research, made a series of conclusions and innovative results, for the preparation of novel organic and inorganic composite optical limiting materials provides a theoretical basis and material basis. , Inorganic fund is a phthalocyanine compound solid-state optical limiting materials prepared by wet chemical methods. Application pore structure testing technology, systematic study of the the different sol - gel process conditions SiO , 2 gel matrix pore structure variation, cut and design of the inorganic matrix, and based on this result successfully designed phthalocyanine doped gel matrix formulations. Given phthalocyanine dimerization is an important factor to affect the performance of nonlinear optical limiter effect, the application of UV - visible absorption spectra of the composite system is doped phthalocyanine dimerization variation, the molecular structure of phthalocyanine dual design features and inorganic matrix may effectively inhibit the dimerization of the technical approach. The results reveal a complex system of physical doped phthalocyanine genealogy performance and dimerization behavior of macro regulation, to prove that the physical doping process after all, a simple preparation of organic-inorganic composite materials, possible ways. On this basis, the application of optical limiting testing techniques, systematic study of the inorganic funds optical limiting properties of solid materials is a phthalocyanine compound and metal phthalocyanine complexes in the optical limiting mechanism of the composite system, reveals the complex system of light limiting properties of phthalocyanine concentration effect, the central ion effect, substituent effects and matrix effects, and to provide a reliable reference and possible design and composite Optimization of Preparation of metal phthalocyanine molecules.

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