Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/150704

Optical absorption and luminescence energies of F centers in CaO from ab initio embedded cluster calculations

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

We calculated the optical absorption and luminescence energies of electrons trapped at oxygen vacancies in CaO using a consistent embedded cluster method which accounts for the long-range polarization effects and partial covalence of CaO. Optical absorption and luminescence energies of neutral 􏰏F center􏰎 and positively charged 􏰏F+ center􏰎 vacancies are calculated by means of time dependent density functional theory using the B3LYP exchange-correlation density functional. Our results demonstrate that using large basis sets to describe a diffuse nature of excited states, and properly accounting for long-range polarization induced by charged and excited defect states, is crucial for accurate predictions of optical excitation and luminescence energies of these defects.

Citació

Citació

CARRASCO RODRÍGUEZ, Javier, et al. Optical absorption and luminescence energies of F centers in CaO from ab initio embedded cluster calculations. Journal of Chemical Physics. 2006. Vol. 125, num. 7, pags. 074710-1-074710-9. ISSN 0021-9606. [consulted: 4 of August of 2026]. Available at: https://hdl.handle.net/2445/150704

Exportar metadades

JSON - METS

Compartir registre