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Preparation And Performance On Self-Assembly Tetrasulfonated Metal Phthalocy Anine Thin Films

Posted on:2012-10-12Degree:MasterType:Thesis
Country:ChinaCandidate:K L KongFull Text:PDF
GTID:2211330338465883Subject:Physical chemistry
Abstract/Summary:PDF Full Text Request
The thesis will focus on the following aspects:(1)Two tetrasulfonated metal phthalocyanine compounds, tetrasulfonated titanium phthalocyanine (TiOTsPc) and tetrasulfonated indium phthalocyanine (InClTsPc) were synthesized by using the solid phase method.(2)Orderly.multi-molecular films by electrostatic self-assembly (ESA) technology has been made. The films were characterized by UV-vis spectroscopy, AFM, on the membrane structure and assembly conditions, morphology and stability. The results showed that the process is continuous, uniform and regular, the total number of film's layers can be artificially controlled, arranged between layers of compact, and has considerable stability.(3)The third-order nonlinear optical properties of PEI/TiOTsPc and PEI/InClTsPc films were tested by using Z-scanning technology. The experimental data was fit and then further calculations, the nonlinear absorption coefficient (β) of the sample were:4.2×10-6m/W,2.9 10-6m/W, respectively.(4)To self-assembed ordered multi-layer films containing the diazonium salt resins (DR) and tetrasulfonated metal phthalocyanine molecules (VOTsPc) on a glass carbon electrode which surface have been modified single-layer film (p-amino benzoic acid). The diffusion coefficient was determined using chronoamperometry.The catalytic performance of the modified thin film electrodes to sodium nitrite has been researched. The diffusion coefficients of sodium nitrite in the modified GCE/4-ABA/DR/VOTsPc thin film electrode is D=1.2135×10-5cm2s-1.
Keywords/Search Tags:electrostatic self-assembly, metal phthalocyanine, optical limiting, third-order nonlinear susceptibility
PDF Full Text Request
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