Structural and Optical Properties of Nanocrystalline Sn0.93Mn0.07O2: Role of Oxygen Vacancies

被引：1

作者：

Ahmad, Naseem ^{[1
]}

Khan, Shakeel ^{[1
]}

Ansari, Mohd Mohsin Nizam ^{[1
]}

Bhargava, Richa ^{[1
]}

机构：

[1] Aligarh Muslim Univ, ZH Coll Engn & Technol, Dept Appl Phys, Aligarh 202002, UP, India

来源：

PROF. DINESH VARSHNEY MEMORIAL NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS (NCPCM 2018) | 2019年 / 2100卷

关键词：

Optical band gap; Urbach tail; oxygen vacancies; lattice strain; SnO2; SNO2;

D O I：

10.1063/1.5098565

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, structural and optical properties of Sn0.93Mn0.07O2 havebeen studied comprehensively. The tetragonal phase of the sample and the functional groups were demonstrated by XRD and FTIR spectroscopy respectively. The average crystallite size was found to be 19.5 calculated from the Scherer equation and21.5 nm fromWilliamson Hall analysis. Optical band gap and Urbach energy of the sampleestimated are at 3.78 eV and 0.752 eV respectively. The existence of the defects like oxygen vacancies is verified by photoluminescence spectroscopy and its influence on the structural and optical properties of Sn0.93Mn0.07O2 is also discussed.

引用

页数：4

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