Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of highly magnesium-doped strontium plumbum titanate high dielectric adjustable film material

A technology for strontium lead titanate and thin film materials, which is applied in the field of preparation of strontium lead titanate high dielectric tunable thin film materials, can solve the problems of inability to form crystalline content, reduce the crystalline phase content of thin films, high PST thin films, etc. Good market prospect, improved dielectric constant, low cost effect

Inactive Publication Date: 2008-04-16
ZHEJIANG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the experimental conditions that the content of Pb is 40%, the content of Sr is 60%, the content of Mg replacing Ti can be from 0 to 15%, and it is determined that when the doping content of Mg is 10%, the crystal phase content of the film The highest, too much Mg doping will greatly increase the defects and reduce the crystal phase content of the film. At this time, it is impossible to form a PST film with high crystal content and complete structure, that is, within the range of this low content of Mg doping Haven't gotten very good results yet

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of highly magnesium-doped strontium plumbum titanate high dielectric adjustable film material
  • Preparation method of highly magnesium-doped strontium plumbum titanate high dielectric adjustable film material
  • Preparation method of highly magnesium-doped strontium plumbum titanate high dielectric adjustable film material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Lead acetate and strontium carbonate were dissolved in acetic acid by adding a small amount of deionized water, and the reaction was heated to obtain a colorless transparent solution; butyl titanate was dissolved in ethylene glycol methyl ether, and stirred until uniformly mixed. Mix the two solutions to obtain a Pb-Sr-Ti precursor sol, in which the concentrations of Pb, Sr, and Ti are: Pb: 0.22mol / L, Sr: 0.12mol / L, Ti: 0.35mol / L L. Immerse the glass substrate in the prepared sol system at a constant speed (4cm / min), place it for 10 seconds to make the glass substrate in a stable state, and then lift it at the same speed (4cm / min) until all the glass pieces are lifted out of the liquid surface, Then dry naturally in the air. Then put it into a high-temperature furnace, perform a rapid heat treatment at a temperature of 560° C. for 5 minutes, and after cooling, repeat the above operations to prepare a multilayer film. The prepared multilayer film was heat-treated at 59...

Embodiment 2

[0026] Add a small amount of deionized water to dissolve lead acetate, strontium carbonate, and magnesium carbonate into acetic acid, and heat to obtain a colorless and transparent solution; dissolve butyl titanate into ethylene glycol methyl ether, and stir until they are evenly mixed. Mix the two solutions to obtain a Pb-Sr-Mg-Ti precursor sol, in which the concentrations of the four components of Pb, Sr, Mg, and Ti are: Pb: 0.26mol / L, Sr: 0.08mol / L, Mg : 0.035mol / L, Ti: 0.315mol / L. Immerse the ITO glass slide in the prepared sol system at a constant speed (5cm / min), and place it for 15 seconds to keep the ITO glass slide in a stable state, and then lift it at the same speed (5cm / min) until the substrate is completely lifted out of the liquid surface , and then dry naturally in the air. Then put it into a high-temperature furnace, perform rapid heat treatment at 550° C. for 5 minutes, and after cooling, repeat the above operations to prepare a multilayer film. The prepared...

Embodiment 3

[0028]Add a small amount of deionized water to dissolve lead acetate, strontium carbonate, and magnesium carbonate into acetic acid, and heat to obtain a colorless and transparent solution; dissolve butyl titanate into ethylene glycol methyl ether, and stir until they are evenly mixed. Mix the two solutions to obtain a Pb-Sr-Mg-Ti precursor sol, in which the concentrations of the four components of Pb, Sr, Mg, and Ti are: Pb: 0.24mol / L, Sr: 0.10mol / L, Mg : 0.035mol / L, Ti: 0.315mol / L. Dip the Si substrate into the prepared sol system at a constant speed (5cm / min), place it for 12 seconds to keep the Si substrate in a stable state, and then lift it up at the same speed (5cm / min) until the substrate is completely lifted out of the liquid surface, and then Dry naturally in the air. Then put it into a high-temperature furnace, perform a rapid heat treatment at a temperature of 580° C. for 5 minutes, and after cooling, repeat the above operations to prepare a multilayer film. The ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
dielectric lossaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparing method of high-dielectric adjustable film material of strontium lead titanate doped magnesium, which comprises the following steps: adopting butyl phthalate, lead acetate, strontium carbonate and magnesium carbonate as raw material; making ethandiol dimethyl ether and acetate as solvent; allocating sol former; adopting allocated relative sol former as coating solution; using immersing sash method to prepare film layer; drying the coating; disposing under high-temperature; sintering to obtain PSMT ferric electric film.

Description

technical field [0001] The invention relates to a preparation method of a high-magnesium-doped strontium-lead titanate high-dielectric adjustable film material. Background technique [0002] In recent years, ferroelectric thin films have been used to make ferroelectric storage memories, pyroelectric detector arrays, Piezoelectric motors, ferroelectric film capacitors, film sensor arrays, iron point film microwave devices, ferroelectric optics and integrated optics, etc. It can be widely used in many fields such as microelectronics, integrated optics, and micromechanics. With the advancement of thin film preparation technology and the development of application fields, especially the preparation technology of ferroelectric thin film can be compatible with semiconductor integrated circuit technology, making the development and research of ferroelectric, piezoelectric, Pyroelectric, electro-optic, nonlinear optics and many other functions in one multifunctional circuit, devic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/47C04B35/472C03C17/22C04B41/87
Inventor 杜丕一李晓婷翁文剑韩高荣赵高凌沈鸽徐刚张溪文
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com