Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix
Тип публикации: Journal Article
Дата публикации: 2012-02-01
scimago Q1
wos Q1
white level БС1
SJR: 2.972
CiteScore: 15.4
Impact factor: 9.3
ISSN: 13596454, 18732453
Metals and Alloys
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Polymers and Plastics
Краткое описание
Nanocrystal formation of SnO 2 in x SnO 2 –(100 − x )MgO ( x in mol.%) nanocrystalline composite thin films is reported. SnO 2 and MgO exhibit strong immiscibility behavior below 750 °C, leading to controllable particle size of SnO 2 in the MgO matrix by changing their composition. The particle size of SnO 2 can also be controlled by increasing the annealing temperature. Above 750 °C MgO and SnO 2 react to yield a MgO–Mg 2 SnO 4 –SnO 2 composite in which the size of the SnO 2 nanophase increases with increasing temperature. By controlled choice of the composition and annealing conditions the band gap of SnO 2 can be continuously increased from 3.89 to 4.5 eV. We discuss this behavior in terms of the quantum confinement effect. The method provides a generic approach to tuning the band gap in nanocomposite systems over a wide energy range.
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Sahana M. B. et al. Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix // Acta Materialia. 2012. Vol. 60. No. 3. pp. 1072-1078.
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Sahana M. B., Sudakar C., Dixit A., Sharma M., Naik R., Naik V. Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix // Acta Materialia. 2012. Vol. 60. No. 3. pp. 1072-1078.
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TY - JOUR
DO - 10.1016/j.actamat.2011.11.012
UR - https://doi.org/10.1016/j.actamat.2011.11.012
TI - Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix
T2 - Acta Materialia
AU - Sahana, M B
AU - Sudakar, C
AU - Dixit, Ambesh
AU - Sharma, Meera
AU - Naik, R
AU - Naik, V.N.
PY - 2012
DA - 2012/02/01
PB - Elsevier
SP - 1072-1078
IS - 3
VL - 60
SN - 1359-6454
SN - 1873-2453
ER -
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@article{2012_Sahana,
author = {M B Sahana and C Sudakar and Ambesh Dixit and Meera Sharma and R Naik and V.N. Naik},
title = {Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix},
journal = {Acta Materialia},
year = {2012},
volume = {60},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.actamat.2011.11.012},
number = {3},
pages = {1072--1078},
doi = {10.1016/j.actamat.2011.11.012}
}
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MLA
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Sahana, M. B., et al. “Quantum confinement effects and band gap engineering of SnO2 nanocrystals in a MgO matrix.” Acta Materialia, vol. 60, no. 3, Feb. 2012, pp. 1072-1078. https://doi.org/10.1016/j.actamat.2011.11.012.
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