Near-Infrared Emission in Na5Y(WO4)4:Nd3+
Year: 2024
Type: article
Abstract: Luminescence in Na5Y(WO4)4:Nd3+ is investigated for the first time. The emission is in the near-infrared region. The well known 4F3/2 → 4I9/2 transition leads to most intense line at 1069 nm. The excitation and emission spectra are interpreted using the energy level diagram of Nd3+. The excitation spectrum is made up of a large number of sharp lines attributable to various f–f transitions. A weak band at 360 nm in the ex-citation spectrum is assigned to the host. Notwithstanding large Y–Y distances, the luminescence is quenched at concentrations exceeding 2 mol %. The critical distance for energy transfer among Nd3+ ions is found to be 32.85 Å.
Source: Physics of the Solid State
Institution: Rashtrasant Tukadoji Maharaj Nagpur University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403051609