- Tytuł:
- Effect of Mn Doping on the Structural, Optical and Magnetic Properties of $SnO_2$ Nanoparticles
- Autorzy:
-
Saravanakumar, M.
Agilan, S.
Muthukumarasamy, N.
Rukkumani, V.
Marusamy, A.
Ranjitha, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1400508.pdf
- Data publikacji:
- 2015-06
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.60.Ej
78.60.Lc
61.46.Df
68.37.Hk
68.37.Og - Opis:
- Undoped and Mn doped $SnO_2$ prepared by co-precipitation method exhibits nanocrystalline nature with prominent peaks along (110), (101), (211), and (310) planes. All the prepared samples are nanocrystalline with crystallite size lying in the range of 4.8-5.6 nm. The prepared $SnO_2$ nanoparticles exhibit single tetragonal crystalline phase. The high resolution transmission electron microscopy images show that the particles are nanocrystalline in nature. The composition of the prepared samples have been analyzed using energy dispersive analysis of X-rays spectra. The photoluminescence spectroscopy shows the recombination of electrons in singly occupied oxygen vacancies with photoexcited holes in the valence band. Broad UV emission at 426 nm is observed in photoluminescence. UV-vis absorption spectral studies showed a peak at 385 nm. Magnetic measurements revealed that all the doped samples exhibit room temperature ferromagnetism, which is identified as an intrinsic characteristic obtained on doping. Pure SnO_2 nanoparticles showed diamagnetism, $SnO_2$ with lower Mn content show larger magnetization and with increasing Mn content the retentivity and coercivity are found to decrease.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 6; 1656-1661
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł