Tunable optical bandgap of chromium doped Pr0.5Sr0.5MnO3 system

被引：0

作者：

Kusuma, Ashok Kumar ^{[1
,2
]}

Kumar, Katrapally Vijaya ^{[1
]}

Raghavender, A. T. ^{[3
]}

机构：

[1] JNTUH Univ, Coll Engn Rajanna Sircilla, Dept Phys, Agraharam 505302, TS, India

[2] BV Raju Inst Technol, Narsapur 502313, Telangana, India

[3] Int Sch Technol & Sci Women, Dept Phys, East Godavari 533294, Andhra Pradesh, India

来源：

JOURNAL OF ALGEBRAIC STATISTICS | 2022年 / 13卷 / 02期

关键词：

XRD; Optical energy bandgap; Refractive index; Absorption coefficient; Extinction coefficient; Real and imaginary parts of dielectric constant;

D O I：

暂无

中图分类号：

O21 [概率论与数理统计]; C8 [统计学];

学科分类号：

020208 ; 070103 ; 0714 ;

摘要：

Chromium doped Pr0.5Sr0.5Mn1-xCrxO3 (x= 0.0, 0.1, 0.2, 0.3, 0.4) system were synthesized by sol-gel method. The X-ray diffraction patterns revealed the formation of single-phase orthorhombic structure (Pnma space group). The crystallite size was observed to vary from 26.12169 nm to 33.19551 nm with Cr doping concentration. The dislocation density was also observed to varied from 0.9074 x 10(-3) to 1.4655 x 10(-3)nm(-2) with change in Cr doping concentration. The micro strain was observed to increase from 36.8395 x 10(-4) to 46.8197 x 10(-4) with change in Cr doping concentration. There was no evidence of characteristic absorbance peaks for all the synthesized samples. The optical energy band gap was calculated using KubelkaMunk equation based on Tauc's plot and observed in the range 0.52 to 1.12 eV.

引用

页码：290 / 299

页数：10

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