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Luminescent Characteristics of Undoped and Er-doped ZnO Thin Films

机译:未掺杂和掺杂ZnO薄膜的发光特性

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In order to clarify the fundamental luminescent mechanism of undoped and Er-doped ZnO thin films synthesized by sputtering method, cathodoluminescence (CL) from the samples formed on several kinds of substrate were measured. There was no explicit peak identified with luminescence from ZnO crystal defects in undoped sample, on the contrary, three sharp luminescent peaks were observed in the case of Er-doped ZnO film due to the internal transition of the additive Er ions in the CL spectrum. The mechanism was investigated in comparison with photoluminescence (PL).
机译:为了阐明通过溅射法合成的未掺杂和掺杂的ZnO薄膜的根本发光机制,测量来自在几种基材上形成的样品中的阴离子发光(Cl)。没有从ZnO晶体缺陷中鉴定出未掺杂的样品中的发光的显式峰,相反,在掺杂的ZnO膜的情况下观察到三个尖锐的发光峰,由于CL光谱中的添加剂ER离子的内部转变。与光致发光(PL)相比研究了该机制。

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