Influence of La3+ doping on structural and optical properties of SrCeO3 perovskite

被引：0

作者：

Yadav, Dharmendra ^{[1
]}

Kumar, Pravin ^{[2
]}

Tripathi, Alok Kumar ^{[3
]}

Yadav, Ram Sagar ^{[4
]}

Nirala, Gurudeo ^{[5
]}

Yadav, Sushma ^{[6
]}

Yadav, Ashish Kumar ^{[7
]}

Yadav, Sandip ^{[8
]}

机构：

[1] SKM Univ Dumka Jharkhand, Model Coll Deoghar, Dept Phys, Dumka, India

[2] Banaras Hindu Univ, Inst Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

[3] Univ Delhi, Ramjas Coll, Dept Phys, Delhi 110007, India

[4] Banaras Hindu Univ, Inst Sci, Varanasi 221005, Uttar Pradesh, India

[5] Govt Polytech Munger, Dept Basic Sci & Humanities, Munger 811213, India

[6] Govt Polytech Bakshi Ka Talab, Dept Mech Engn, Lucknow 226201, Uttar Pradesh, India

[7] Univ Mumbai, RJ Coll, Mumbai, Maharashtra, India

[8] Univ Allahabad, Dept Phys, Allahabad 221005, Uttar Pradesh, India

来源：

PHYSICA SCRIPTA | 2024年 / 99卷 / 11期

关键词：

SrCeO3; XRD; TEM; Raman; FTIR; UV-visible spectroscopy; PURE;

D O I：

10.1088/1402-4896/ad804c

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The SrCe1-xLaxO3 (x = 0.0, 0.02, 0.4, 0.6, and 0.10) perovskite materials have been successfully synthesized by auto-combustion method and calcined at 1100 degrees C. The XRD patterns reveal a highly crystalline orthorhombic crystal structure with a Pnma space group in all samples. The TEM micrograph shows a spherical morphology of the 10 mol% La3+ doped SrCeO3 perovskite sample alongwith the SAED pattern confirming its highly crystalline nature. The incorporation of La3+ ion in the SrCeO3 perovskite has been confirmed by the Raman and Fourier transform infrared (FTIR) measurements. The UV-vis absorption spectra at room temperature show various bands, with a strong absorption band observed below 400 nm. The optical band gap of the undoped and La3+ doped samples have been calculated and it is smaller for the La3+ doped perovskite samples than that of the undoped perovskite sample. Therefore, the La3+ doped SrCeO3 perovskite may be applicable for optoelectronic applications.

引用

页数：9

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