| Autor: |
Barbieri, F., Dias, L. C., de Oliveira, V. A., Rosso, J. M., Miyahara, R. Y., Santos, B. B. D., González-Borrero, P. P., Bonadio, T. G. M., Dias, G. S., Eiras, J. A., Santos, I. A., Freitas, V. F. |
| Předmět: |
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| Zdroj: |
Ferroelectrics; 2023, Vol. 611 Issue 1, p279-286, 8p |
| Abstrakt: |
Perovskites have been pointed out as promising candidates for several technologic areas, especially for photovoltaic applications. In this work, CaTiO3 compounds were synthesized by using the Pechini method and their structural, optical, and electrical properties were investigated. Tilted octahedral oxygen arrangements with a single center of symmetry for positive and negative electric charges are observed, forming a nonpolar perovskite structure. The origin of the observed structural distortions is directly linked to the strongest chemical bond between the O1−2 and Ti+4 ions. Direct (2.9 eV) and indirect (3.8 eV) optical band gaps are also observed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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