A Comprehensive Investigation on Optical and Magnetic Properties of (In1 – xDyx)2O3 Nano Powders Prepared by Solid State Reaction Method
| Authors | Lakshmi Rajesh Chebrolu1, Madhusudhana Rao Nasina1, , Kaleemulla Shaik2, Maddikera Kalyan Chakravarthi3 |
| Affiliations |
1Department of Physics, School of Advanced Sciences, VIT-AP University, Amaravati, 522237 Andhra Pradesh, India 2Thin Films Laboratory, Centre for Functional Materials, Vellore Institute of Technology, Vellore, 632014 Tamil Nadu, India 3School of Electronics Engineering, VIT-AP University, Amaravati, 522237 Andhra Pradesh, India |
| Е-mail | drnmrao@gmail.com |
| Issue | Volume 15, Year 2023, Number 2 |
| Dates | Received 04 February 2023; revised manuscript received 18 April 2023; published online 27 April 2023 |
| Citation | Lakshmi Rajesh Chebrolu, Madhusudhana Rao Nasina, et al., J. Nano- Electron. Phys. 15 No 2, 02021 (2023) |
| DOI | https://doi.org/10.21272/jnep.15(2).02021 |
| PACS Number(s) | 77.84.Bw, 78.55.Mb |
| Keywords | Indium oxide, Dysprosium oxide, Rare-earth oxides, Solid-state method, Photoluminescence (17) , Vibrating sample magnetometer. |
| Annotation |
In this investigation, Dy doped In2O3 nanoparticles were synthesized using solid-state reaction with different concentrations of 2 at.%, 5 at.%, and 9 at.%. From the X-ray diffraction studies, it was observed the powder samples have a cubic bixbyite crystal structure, and crystallites size was in the range of 31 nm to 82 nm. From the scanning electron microscope images, grain size it was measured and it was in the range of 100 nm to 300 nm. The energy dispersive analysis of X-ray (EDAX) spectra revealed that the synthesized nanoparticles are free from impurities. Using diffuse reflectance spectra, the optical band gap was calculated and it increased from 2.89 eV to 2.96 eV with increase of Dy3+ ions concentration. Photoluminescence spectra shown emission peaks in the visible region of the spectrum when samples were excited with a light source of wavelength 410 nm. At ambient temperature, the pure In2O3 exhibited paramagnetic nature whereas (In1 – xDyx)2O3 nanoparticles shown ferromagnetism. |
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