Spectral properties of Ce³⁺doped yttrium lanthanum oxide transparent ceramics

Abstract

Ce 3+ -doped yttrium lanthanum oxide (Y 0.9 La 0.1 ) 2 O 3 transparent ceramics is fabricated with nanopowders and sintered in H 2 atmosphere. The spectral properties of Ce:(Y 0.9 La 0.1 ) 2 O 3 transparent ceramics are investigated. There appear two characteristic absorption peaks of Ce 3+ ions at 230 nm and 400 nm, separately. It is found that Ce 3+ ions can efficiently produce emission at 384 nm from (Y 0.9 La 0.1 ) 2 O 3 transparent ceramic host, while the emission is completely quenched in Re 2 O 3 (Re=Y, Lu, La) host materials.