HoSrMnNi co-doped trigonal bismuth ferrite superlattice film and preparation method thereof
A superlattice and bismuth ferrite technology is applied in the field of HoSrMnNi co-doped bismuth ferrite superlattice thin film and its preparation, and achieves the effects of simple equipment requirements, easy reaction and low process temperature
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Embodiment 1
[0032] Step 1: Using bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.94:0.03:0.03 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;
[0033] Using bismuth nitrate, holmium nitrate, strontium nitrate, iron nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.93:0.03:0.04 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;
[0034] Step 2: Clean the FTO / glass substrate, and then irradiate it under ultraviolet light until the surface of the FTO / glass substrate reaches atom...
Embodiment 2
[0041] Step 1: Using bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.94:0.03:0.03 dissolved in volume ratio In the mixed solution of ethylene glycol methyl ether and acetic anhydride of 1:1, obtain the stable precursor solution A that the total concentration of metal ions is 0.1mol / L;
[0042] Using bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.93:0.03:0.04 and the volume ratio is 1: 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 0.1mol / L;
[0043] Step 2: Clean the FTO / glass substrate, and then irradiate it under ultraviolet light until the surface of the FTO / glass substrate reaches at...
Embodiment 3
[0047] Step 1: Using bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.94:0.03:0.03 dissolved in volume ratio In the mixed solution of ethylene glycol methyl ether and acetic anhydride of 2:1, obtain the stable precursor solution A that the total concentration of metal ions is 0.2mol / L;
[0048] Using bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate, manganese acetate and nickel acetate as raw materials (5% excess bismuth nitrate), the molar ratio is 0.94:0.08:0.03:0.93:0.03:0.04 and the volume ratio is 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;
[0049] Step 2: Clean the FTO / glass substrate, and then irradiate it under ultraviolet light until the surface of the FTO / glass substrate reaches at...
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