Abstract

Nanostructured manganese oxide (Mn₂O₃) thin films were synthesized by spin coating method. The effect of preparation conditions, such as calcination temperature, rotation speed, as well as solution aging time on structural, morphological, and optical properties of the samples were investigated. The phase of the grown films changed from amorphous to orthorhombic by applying the calcination temperature beyond 400 °C. At low calcination temperature, agglomerations of the particles happened and no uniform structure formed. Furthermore, the results indicated that employing higher rotation speeds led to decrement of the samples crystallinity. Aging the solution did not change the absorption edge of the samples. However, the optical transmittance of the samples decreased by about 10 percent.

Surface FESEM image of seven layer Mn₂O₃ thin film calcined at 500 °C

中文翻译：

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制备条件对氧化锰薄膜物理性能的影响

摘要

采用旋涂法合成了纳米结构的氧化锰（Mn ₂ O ₃）薄膜。研究了制备条件（例如煅烧温度，转速和溶液老化时间）对样品的结构，形态和光学性质的影响。通过施加超过400℃的煅烧温度，生长的膜的相从无定形变为正交晶。在低的煅烧温度下，发生了颗粒的团聚并且没有形成均匀的结构。此外，结果表明采用更高的转速导致样品结晶度降低。溶液老化不会改变样品的吸收边缘。但是，样品的透光率降低了约10％。

在500°C下煅烧的七层Mn ₂ O ₃薄膜的表面FESEM图像