| Autor: |
Chebrolu, Lakshmi Rajesh, Nasina, Madhusudhana Rao, Shaik, Kaleemulla, Chakravarthi, Maddikera Kalyan |
| Předmět: |
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| Zdroj: |
Journal of Nano- & Electronic Physics; 2023, Vol. 15 Issue 2, p1-7, 7p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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