喷雾热解法制备均匀分布的Fe $_2$ O $_3$纳米粒子薄膜
Uniformly Distributed Fe$_2$O$_3$ Nanoparticles Thin Films Synthesized by Spray Pyrolysis
摘要：
采用喷雾热分解技术，以水和二茂铁的二甲苯溶液为原料，在单晶硅和玻璃衬底上制备了均匀分布的Fe 2 O 3纳米颗粒薄膜。纳米颗粒的粒径分布在20 nm至30 nm的范围内。用X射线衍射、扫描电子显微镜和拉曼光谱技术对薄膜进行了表征。从两种基板上的电子显微镜图像可以明显看出生长膜的均匀性。用X射线衍射和吸收光谱分别研究了样品的结晶性和禁带宽度。使用633 nm和785 nm的两个激发波长对所制备的薄膜进行拉曼测量，以调查薄膜的均匀性的深度。波长相关的拉曼测量表明，该膜是均匀的跨膜的厚度在两个基板上。
英文摘要：
Thin films of uniformly distributed Fe2O3 nanoparticles have been prepared on single crystal silicon and glass substrates by a spray pyrolysis technique in a single step using a mixture of water and ferrocene dissolved in xylene. The size distribution of nanoparticles is found to be in the range of 20 nm to 30 nm. The films have been characterized by X-ray diffraction, scanning electron microscopy and Raman spectroscopy techniques. The uniformity of the grown film was evident from the electron microscopic images on both the substrates. The crystallinity and band gap were investigated using X-ray diffraction and absorption spectroscopy respectively. Raman measurements of the prepared films have been carried out using two excitation wavelengths of 633 nm and 785 nm to investigate the depth of homogeneity of the films. The wavelength dependent Raman measurements reveal that the film is uniform across the thickness of the film on both the substrates.
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