Nano Particles of Luminescent Lanthanide Materials

LÓPEZ, CARLOS A.; KNOPE, KARAH; AYSCUE, R. LEE; NARDA, GRISELDA E.; GOMEZ, GERMÁN E.; DELUIGI, MARÍA TORRES

MICROSCOPY & MICROANALYSIS

CAMBRIDGE UNIV PRESS

Año: 2020 vol. 26 p. 123 - 124

1431-9276

The lanthanide ions have fascinating optical properties, including brightness and luminescence. Towardsthis end, many recent efforts have aimed to develop new or improved optical devices via the pairing ofappropriate host materials (chemical compositions) with doped lanthanide ions [1-2]. Trivalentlanthanide ions are characterized by a gradual filling of the 4f orbitals, from 4f 0 (La3+) to 4f 14 (Lu3+).These electronic [Xe] f N configurations (N = 0-14) generate a variety of electronic energy levels [3],resulting in intricate optical properties [4]. Consequently, each lanthanide ion exhibits narrow andcharacteristic 4f-4f transitions. All Ln3+ ions (except La3+ and Lu3+) can produce f-f emissions fromultraviolet to visible and near-infrared ranges.The lanthanide elements manifest this behavior [5], andfor this reason they are used in multiple technological applications, such as: lighting devices (economicluminescent lamps, light emitting diodes), television and computer screens, optical fibers, opticalamplifiers and lasers.