BiFe1-XMnXO3 ferroelectric film with high remnant polarization and preparation method thereof
A technology of ferroelectric thin film and polarization strength, applied in chemical instruments and methods, inorganic chemistry, iron compounds, etc., can solve the problems of unmeasured ferroelectric and piezoelectric properties, lower effective voltage, and easy breakdown of thin films, etc. problem, to achieve the effect of precise and controllable chemical composition, reduced leakage current, and easy control of doping amount
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Embodiment 1
[0039] Step 1: Select the FTO / glass substrate as the substrate, and place the cut FTO / glass substrate in detergent, acetone and ethanol in order for ultrasonic cleaning. After each ultrasonic cleaning for 10 minutes, rinse the substrate with a large amount of distilled water, and finally use nitrogen. Blow dry. Then put the FTO / glass substrate into a 70°C oven and bake for 5 minutes, take it out and let it stand to room temperature. Finally, the clean FTO / glass substrate was placed in an ultraviolet irradiator to irradiate it for 40 minutes to achieve "atomic cleanliness" on the surface of the substrate.
[0040] Step 2: The massage ratio is 1.05:0.98:0.02 (ie x=0.02) and Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 ·9H 2 O and C 4 H 6 MnO 4 ·4H 2 O is dissolved in the mixed solution, and after 2.5 hours of magnetic stirring, a uniform and stable precursor solution is obtained. The mixed solution is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1. The ...
Embodiment 2
[0045] Step 1: Select the FTO / glass substrate as the substrate, and place the cut FTO / glass substrate in detergent, acetone and ethanol in order for ultrasonic cleaning. After each ultrasonic cleaning for 10 minutes, rinse the substrate with a large amount of distilled water, and finally use nitrogen. Blow dry. Then put the FTO / glass substrate into a 70°C oven and bake for 5 minutes, take it out and let it stand to room temperature. Finally, the clean FTO / glass substrate was placed in an ultraviolet irradiator to irradiate it for 40 minutes to achieve "atomic cleanliness" on the surface of the substrate.
[0046] Step 2: The massage ratio is 1.05:0.96:0.04 (ie x=0.04) and Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 ·9H 2 O and C 4 H 6 MnO 4 ·4H 2 O is dissolved in the mixed solution, and after 2.5 hours of magnetic stirring, a uniform and stable precursor solution is obtained. The mixed solution is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1. The ...
Embodiment 3
[0051] Step 1: Select the FTO / glass substrate as the substrate, and place the cut FTO / glass substrate in detergent, acetone and ethanol in order for ultrasonic cleaning. After each ultrasonic cleaning for 10 minutes, rinse the substrate with a large amount of distilled water, and finally use nitrogen. Blow dry. Then put the FTO / glass substrate into a 70°C oven and bake for 5 minutes, take it out and let it stand to room temperature. Finally, the clean FTO / glass substrate was placed in an ultraviolet irradiator to irradiate it for 40 minutes to achieve "atomic cleanliness" on the surface of the substrate.
[0052] Step 2: The massage ratio is 1.05:0.95:0.05 (ie x=0.05) and Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 ·9H 2 O and C 4 H 6 MnO 4 ·4H 2 O is dissolved in the mixed solution, and after 2.5 hours of magnetic stirring, a uniform and stable precursor solution is obtained. The mixed solution is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1. The ...
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