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首页> 外文期刊>Physica, B. Condensed Matter >Effect of sintering atmosphere on the electrical and optical properties of (ZnO)(1-x)(MnO2)(x) NTCR ceramics
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Effect of sintering atmosphere on the electrical and optical properties of (ZnO)(1-x)(MnO2)(x) NTCR ceramics

机译:烧结气氛对(ZnO)(1-x)(MnO2)(x)NTCR陶瓷电学和光学性能的影响

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Nominal composition of (ZnO)(1-x)(MnO2)(x)(0.005 <= x <= 0.2) ceramics have been prepared by the standard solid-state reaction method in three different sintering atmospheres: Ar, air, and reductive atmosphere. The effect of sintering atmosphere on the electron spin resonance (ESR), negative temperature coefficient of resistivity (NTCR), and photoluminescence (PL) properties of (ZnO)(1-x)(MnO2)(x) ceramics has been investigated in detail. The results demonstrate that the sintering atmosphere has significant effects on the ESR signals of (ZnO)(1-x)(MnO2)(x); the NTCR of the samples sintered in air is larger than those sintering in Ar and reductive atmosphere; the deep-level PL related to oxygen vacancy increases when sintered in the reductive atmosphere.
机译:(ZnO)(1-x)(MnO2)(x)(0.005 <= x <= 0.2)陶瓷的标称成分已通过标准的固态反应方法在三种不同的烧结气氛:Ar,空气和还原性烧结气氛中制备大气层。详细研究了烧结气氛对(ZnO)(1-x)(MnO2)(x)陶瓷的电子自旋共振(ESR),负温度系数电阻率(NTCR)和光致发光(PL)性能的影响。 。结果表明,烧结气氛对(ZnO)(1-x)(MnO2)(x)的ESR信号有显着影响。在空气中烧结的样品的NTCR要大于在氩气和还原性气氛中烧结的样品的NTCR。在还原性气氛中烧结时,与氧空位有关的深层PL会增加。

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