Optical spectroscopic study of Ru and Rh doped Bi12TiO20 crystals

Autor:	Peter M. Rafailov, Rosen Todorov, Vera Marinova, Dimitre Dimitrov, Marin Gospodinov
Rok vydání:	2019
Předmět:	Condensed Matter::Materials Science Materials science Condensed Matter::Superconductivity Doping Physics::Atomic and Molecular Clusters Physical chemistry General Chemistry
Zdroj:	Bulgarian Chemical Communications. 51:219-223
ISSN:	0324-1130 0861-9808
Popis:	Bi12TiO20 (BTO) single crystals in pristine state and doped with ruthenium and rhodium are grown by the top-seeded solution growth method and characterized by optical and Raman spectroscopy. The effect of doping on the vibrational and optical properties is studied. The doped crystals show higher absorption in the visible spectral range and higher transmission in the near infrared region as compared to pristine BTO. The performed spatially resolved polarized Raman measurements reveal no significant doping-induced shift of vibrational modes while differences in the LO/TO intensity ratio of the tetrahedral asymmetric stretching vibration are encountered. The observations are discussed in terms of lattice ordering and dopant oxidation states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da8b07d7da5ec9e9d0b4fa59f777d8f2 https://doi.org/10.34049/bcc.51.2.4856 Zobrazit plný text záznamu