DEPOSITION OF METAL OXIDE THIN FILMS ON LARGE AND COMPLICATED-SHAPED SUBSTRATES BY USING REDOX REACTIONS IN AQUEOUS SOLUTIONS

1.SnO_2薄膜：采用Sn2+氧化的方法在玻璃衬底上沉积透明SnO_2薄膜。对薄膜的基本性能进行了表征。在这些薄膜中掺入Sb离子使薄膜具有导电性。我们还在工业二氧化钛粉末表面涂覆了导电SnO_2薄膜，作为开发聚合物导电填料的尝试。2.MnO_2薄膜：通过Mn(II)离子的氧化，在玻璃衬底上沉积了MnO_2薄膜。3.CeO_2薄膜：通过氧化Ce(III)离子在玻璃衬底上沉积具有紫外光截止能力的CeO_2薄膜。4.Co_3O_4薄膜：通过氧化Co(II)离子在玻璃衬底上沉积Co_3O_4薄膜。所制备的薄膜具有电致变色和产生O2的电催化活性。研究了制备条件对这些性能的影响。5.Fe_3O_4薄膜：通过氧化Fe(II)离子在玻璃衬底上沉积Fe_3O_4薄膜。这种方法可以沉积化学计量比的铁氧体，如CoFe_2O_4、MnFe_2O_4等。

1.SnO_2 thin films : Transparent SnO_2 thin films were deposited on glass substrates by the oxidation of Sn(II) ion. The basic properties of the films were characterized. Doping of these films with antimony ion endowed the films with electrical conductivity. We also coated commercial TiO_2 powders with conductive SnO_2 thin films as an attempt to develop conductive fillers for polymers.2.MnO_2 thin films : MnO_2 thin films were deposited on glass substrates by the oxidation of Mn(II) ion. We found it possible to deposit Mn_3O_4 and MnOOH thin films as well by changing the deposition conditions.3.CeO_2 thin films : CeO_2 thin films, capable to cut-off ultraviolet light, were deposited on glass substrates by oxidizing Ce(III) ion.4.Co_3O_4 thin films : Co_3O_4 thin films were deposited on glass substrates by oxidizing Co(II) ion. The resultant thin films exhibited electrochromism and electrocatalytic activity for O_2 generation. The effects of the preparation condition on these properties were investigated.5.Fe_3O_4 thin films : Fe_3O_4 thin films were deposited on glass substrates by oxidizing Fe(II) ion. This method may enable us to deposit stoichiometric ferrites such as CoFe_2O_4, MnFe_2O_4, and so on.