grow bi in c-axis orientation with si as substrate 4 ti 2.95 co 0.05 o 12 Multiferroic thin film and preparation method thereof
A bi4ti2.95co0.05o12, oriented growth technology, applied in chemical instruments and methods, cobalt compounds, inorganic chemistry, etc., can solve the problems of large difference in lattice matching degree and thermal expansion coefficient, and unsatisfactory film performance. The effects of high remanent polarization, low cost of raw materials, and stable properties of the sol
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Embodiment 1
[0044] Growth of Bi in c-axis orientation on Si substrate 4 Ti 2.95 co 0.05 o 12 Multiferroic film, by weight percentage, includes the following components: Bi(NO 3 ) 2 ·5H 2 O7.63%, Co(NO 3 ) 2 ·6H 2 O0.1%, butyl titanate 3.5%, ethylene glycol methyl ether 80.4%, acetylacetone 8.37%.
Embodiment 2
[0046] Growth of Bi in c-axis orientation on Si substrate 4 Ti 2.95 co 0.05 o 12 Multiferroic film, by weight percentage, includes the following components: Bi(NO 3 ) 2 ·5H 2 O19.22%, Co(NO 3 ) 2 ·6H 2 O0.26%, butyl titanate 8.88%, ethylene glycol methyl ether 50.64%, acetylacetone 21%.
Embodiment 3
[0048] Growth of Bi in c-axis orientation on Si substrate 4 Ti 2.95 co 0.05 o 12 Multiferroic film, by weight percentage, includes the following components: Bi(NO 3 ) 2 ·5H 2 O12.93%, Co(NO 3 ) 2 ·6H 2 O0.18%, butyl titanate 5.69%, ethylene glycol methyl ether 66.55%, acetylacetone 14.65%.
[0049] The present invention prepares Bi 4 Ti 2.95 co 0.05 o 12 The multiferroic thin film specifically comprises the following steps:
[0050] Step 1: According to Bi(NO 3 ) 2 ·5H 2 O: ethylene glycol methyl ether = (0.75 ~ 3): molar ratio of 10, weigh a certain amount of Bi (NO 3 ) 2 ·5H 2 Add O and ethylene glycol methyl ether into the beaker, stir at room temperature for 10-30 minutes until completely dissolved, and form solution A;
[0051] According to Co(NO 3 ) 2 ·6H 2 O: ethylene glycol methyl ether = (9.125 × 10 -3 ~0.0365):10 molar ratio, weigh a certain amount of Co(NO 3 ) 2 ·6H 2 Add O and ethylene glycol methyl ether into the beaker, stir at room temp...
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