6533b7d5fe1ef96bd1263b96

RESEARCH PRODUCT

Luminescence in SrTiO3and LiNbO3Crystals Under High Density Pulsed Electron Excitation

Larisa GrigorjevaS. E. KapphanDonāts MillersV. A. Trepakov

subject

PhotoluminescenceMaterials scienceExcitonDopingCondensed Matter PhysicsPolaronMolecular physicsElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryElectron excitationExcited stateStrontium titanateLuminescence

description

The time-resolved luminescence as well as stationary excited luminescence in SrTiO3 (undoped, Nb and Pb doped) and LiNbO3 (congruent and stoichiometric) single crystals was studied. The charge-transfer vibronic exciton in the regular oxy-anion site is suggested to be responsible for luminescence bands at 2.8 eV and 2.75 eV for SrTiO3 and LiNbO3 crystals respectively. It is suggested that luminescence band observed in SrTiO3 at ∼2.2-2.3 eV above 80 K possibly is due to some defect common for all SrTiO3 crystals studied.

yearjournalcountryeditionlanguage
2004-01-01Ferroelectrics
https://doi.org/10.1080/00150190490457645