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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Fine structures of photoluminescence spectra of TiO2 thin films with the addition of ZnFe2O4
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Fine structures of photoluminescence spectra of TiO2 thin films with the addition of ZnFe2O4

机译：添加ZnFe2O4的TiO2薄膜的光致发光光谱的精细结构

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摘要

The fine structures of low-temperature photoluminescence (PL) spectra of TiO2, thin films with addition of ZnFe2O4 (ZnFe2O4/TiO2 composite films) are firstly reported. The films were deposited on quartz substrates by radio-frequency magnetron sputtering method. It is shown that different phase structures are developed for the pure TiO2 and composite films at different annealing temperatures. There is a very strong broad PL band in the composite films, which consists of some minor peaks besides the main PL peak. It is considered that the main PL peak originates from the transition of the impurity-related centres and the minor peaks come from transition, assisted by phonon replicas, of impurity-and oxygen-related defects in TiO6 octahedra. [References: 20]
机译：首先报道了TiO2，添加了ZnFe2O4的薄膜（ZnFe2O4 / TiO2复合膜）的低温光致发光（PL）光谱的精细结构。通过射频磁控溅射法将膜沉积在石英基板上。结果表明，在不同的退火温度下，纯TiO2和复合膜具有不同的相结构。复合膜中有很强的宽PL谱带，除了主要的PL峰外，还包含一些次要的峰。可以认为，主要的PL峰起源于杂质相关中心的跃迁，而次要峰则来自TiO6八面体中与杂质和氧相关的缺陷的声子复制的辅助。 [参考：20]

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