Method for monitoring degree of polarization orientation and relaxation behavior of polymer with ferroelectric nanocrystalline

A technology of polarization orientation and nanocrystals, which is applied in the measurement of color/spectral characteristics, etc., can solve the problems of poor thermal stability of polarization, difficulties of large single crystals, and high cost, costing hundreds of thousands or even millions of yuan, etc. problem, to achieve the effect of simple and universal instrument
CN101718691BInactive Publication Date: 2011-04-06NANJING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV
Publication Date
2011-04-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for monitoring the degree of polarization orientation and the relaxation behavior of the polymer with ferroelectric nanocrystalline. The method comprises the following steps: using a spectrophotometer to detect the transmission spectra change situation over time of the polymer film with ferroelectric nanocrystalline under different temperatures, generating a variation curve; measuring the transmission change before and after polarization of the composite polymer film with ferroelectric nanocrystalline in visible wavelength range to calculate the corresponding degree of polarization orientation, measuring the variation curve of the transmission change over time of the polarized polymer composite film in visible wavelength range to obtain the relaxation behavior of the polarization orientation and learn the stability of the polarization orientation. The method of the invention adopts the commercial visible-ultraviolet spectrophotometer as the detecting instrument, the method is simple, the monitoring cost is low, and the data are in good fit.
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Description

technical field

[0001] The invention relates to a method for monitoring the degree of polarization orientation and relaxation properties in a polarized polymer system, in particular to a method for monitoring the degree of polarization orientation and relaxation properties of a polymer containing ferroelectric nanocrystals. Background technique

[0002] Organic electro-optic polymer films have made great progress in recent years, and have shown a very broad application prospect in cable television and optical fiber communication network systems. Most of the electro-optic coefficients of polymer materials obtained so far are 20-30pm / V, reaching or approaching the inorganic electro-optic crystal LiNb that can be used in the manufacture of electro-optic waveguide devices. 3 level (γ 33 =30pm / V), and the dielectric constant is very small, the linear electro-optic figure of merit F 2 =n 3 The γ / ε is excellent, and the electro-optic response speed reaches the sub-picosecond to ...

Claims

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