A Study on the Emergence of P-Type Behaviour in Sr-Cu-O Mixed Phase Systems

被引：2

作者：

Thomas, Arathy Mariya ^{[1
]}

Salam, Shifa ^{[1
]}

Santhoshkumar, M. C. ^{[2
]}

Devasia, Sebin ^{[1
]}

Anila, E., I ^{[1
]}

机构：

[1] Union Christian Coll, Dept Phys, Optoelect & Nanomat Res Lab, Aluva 683102, Kerala, India

[2] Natl Inst Technol, Dept Phys, OptoelectronicMat & Devices Lab, Tiruchirappalli 620015, Tamil Nadu, India

来源：

INTERNATIONAL CONFERENCE ON APPLIED PHYSICS, POWER AND MATERIAL SCIENCE | 2019年 / 1172卷

关键词：

D O I：

10.1088/1742-6596/1172/1/012008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strontium copper oxide (SCO) powder samples were prepared by hydrothermal method at 180 degrees C. The samples were further annealed in air and vacuum. The XRD analysis showed different phases of SCO (SrCuO3 SrCu2O3 ,SrCu2O2 ,Sr2Cu2O5 ,Sr2Cu3O5 ,Sr4Cu6O10 ,SrCuO2 ,Sr2CuO3) in the synthesized samples. In the FTIR spectra, strong bands of vibrations of Cu-O, C=O, C=C and C-H were found. Broad absorption in the range of 200-800 nm were noted in the absorption spectra. The electrical properties from the Hall effect measurements confirms the n-type behavior of as synthesized SCO and vacuum annealed SCO (V1) . Whereas annealing the sample in air and vacuum for a smaller duration resulted in p-type behavior of SCO (A) and SCO (V2). The SEM images displayed agglomerates formed in the samples with the observed onset of some rod-like structures.

引用

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