B-site Mn and Cu codoped high remanent polarization BiFeO3 film and preparation method
A polarization strength, high residual technology, applied in chemical instruments and methods, single crystal growth, self-gel state, etc., can solve the problem that ferroelectricity cannot correctly measure saturation polarization, it is difficult to observe hysteresis loops, Problems such as low dielectric constant can solve the effect of changing the price of Fe, increasing the number of flips, and improving the performance of multiferroics
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] 1) Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 9H 2 O, C 4 h 6 MnO 4 4H 2 O and Cu(NO 3 ) 2 ·3H 2 O is dissolved in the mixed solution formed by mixing ethylene glycol methyl ether and acetic anhydride at a molar ratio of 1.05:0.95:0.04:0.01, and then stirred for 2 hours to make it uniform to obtain BiFeO 3 Precursor; Among them, BiFeO 3 The total metal ion concentration in the precursor solution is 0.3mol / L, and the volume ratio of ethylene glycol methyl ether and acetic anhydride in the mixed solution is 3:1;
[0025] 2) BiFeO 3 The precursor solution was left to stand for 24h, and then spin-coated BiFeO on the FTO / glass substrate 3 The wet film was prepared from the precursor solution, and the wet film was baked at 200°C for 10 minutes to obtain a dry film, and then rapidly annealed at 550°C for 12 minutes to obtain crystalline BiFeO 3 film.
[0026] 3) To be crystalline BiFeO 3 After film cooling, repeat step 2) again until crystalline BiFeO 3 The film reache...
Embodiment 2
[0028] 1) Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 9H 2 O, C 4 h6 MnO 4 4H 2 O and Cu(NO 3 ) 2 ·3H 2 O is dissolved in the mixed solution formed by mixing ethylene glycol methyl ether and acetic anhydride at a molar ratio of 1.05:0.94:0.04:0.02, and then stirred for 2 hours to make it uniform to obtain BiFeO 3 Precursor; Among them, BiFeO 3 The total metal ion concentration in the precursor solution is 0.3mol / L, and the volume ratio of ethylene glycol methyl ether and acetic anhydride in the mixed solution is 3:1;
[0029] 2) BiFeO 3 The precursor solution was left to stand for 32h, and then spin-coated BiFeO on the FTO / glass substrate 3 The wet film was prepared from the precursor solution, and the wet film was baked at 200°C for 5 minutes to obtain a dry film, and then rapidly annealed at 550°C for 10 minutes to obtain crystalline BiFeO 3 film;
[0030] 3) To be crystalline BiFeO 3 After film cooling, repeat step 2) again until crystalline BiFeO 3 The film reaches t...
Embodiment 3
[0036] 1) Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 9H 2 O, C 4 h 6 MnO 4 4H 2 O and Cu(NO 3 ) 2 ·3H 2 O is dissolved in the mixed solution formed by mixing ethylene glycol methyl ether and acetic anhydride at a molar ratio of 1.05:0.93:0.04:0.03, and then stirred for 2 hours to make it uniform to obtain BiFeO 3 Precursor; Among them, BiFeO 3 The total metal ion concentration in the precursor solution is 0.3mol / L, and the volume ratio of ethylene glycol methyl ether and acetic anhydride in the mixed solution is 3:1;
[0037] 2) BiFeO 3 The precursor solution was left to stand for 28h, and then spin-coated BiFeO on the FTO / glass substrate 3 The wet film was prepared from the precursor solution, and the wet film was baked at 200°C for 7 minutes to obtain a dry film, and then rapidly annealed at 550°C for 15 minutes to obtain crystalline BiFeO 3 film;
[0038] 3) To be crystalline BiFeO 3 After film cooling, repeat step 2) again until crystalline BiFeO 3 The film reaches...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
Curie point | aaaaa | aaaaa |
size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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