A kind of lasrmnco/gdsrmnco co-doped bismuth ferrite superlattice film and preparation method thereof
A technology of superlattice and bismuth ferrite, which is applied in the field of LaSrMnCo/GdSrMnCo co-doped bismuth ferrite superlattice film and its preparation, which achieves the effects of simple equipment requirements, easy reaction and low process temperature
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Embodiment 1
[0031] Step 1: Using bismuth nitrate, lanthanum nitrate, strontium nitrate, ferric nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 dissolved in volume ratio In the mixed solution of ethylene glycol methyl ether and acetic anhydride of 3.2:1, obtain the stable precursor solution A that the total concentration of metal ions is 0.2mol / L;
[0032] Using bismuth nitrate, gadolinium nitrate, strontium nitrate, iron nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 and the volume ratio is 3.2: 1 in the mixed solution of ethylene glycol methyl ether and acetic anhydride, obtain the stable precursor solution B that the total concentration of metal ions is 0.2mol / L;
[0033] Step 2: Clean the FTO / glass substrate first, and then irradiate it under ultraviolet light to make the surface of the FTO / glass subst...
Embodiment 2
[0037] Step 1: Using bismuth nitrate, lanthanum nitrate, strontium nitrate, ferric nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 dissolved in volume ratio In the mixed solution of ethylene glycol methyl ether and acetic anhydride of 2.8:1, obtain the stable precursor liquid A that the total concentration of metal ions is 0.25mol / L;
[0038] Using bismuth nitrate, gadolinium nitrate, strontium nitrate, iron nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 and the volume ratio is 2.8: 1 in the mixed solution of ethylene glycol methyl ether and acetic anhydride, obtain the stable precursor solution B that the total concentration of metal ions is 0.25mol / L;
[0039] Step 2: Clean the FTO / glass substrate first, and then irradiate it under ultraviolet light to make the surface of the FTO / glass subst...
Embodiment 3
[0043] Step 1: Using bismuth nitrate, lanthanum nitrate, strontium nitrate, ferric nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 dissolved in volume ratio In the mixed solution of ethylene glycol methyl ether and acetic anhydride of 3:1, obtain the stable precursor solution A that the total concentration of metal ions is 0.3mol / L;
[0044] Using bismuth nitrate, gadolinium nitrate, strontium nitrate, iron nitrate, manganese acetate and cobalt nitrate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.90:0.12:0.03:0.94:0.04:0.02 and the volume ratio is 3: 1 in the mixed solution of ethylene glycol methyl ether and acetic anhydride, obtain the stable precursor solution B that the total concentration of metal ions is 0.3mol / L;
[0045] Step 2: Clean the FTO / glass substrate first, and then irradiate it under ultraviolet light to make the surface of the FTO / glass substrate...
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