STUDIES OF TERBIUM BRIDGE, MECHANISMS OF ENERGY TRANSFER AND LUMINESCENCE QUENCHING

Abstract

The fluorescence of a phosphor-converted white-light-emitting diodes pc-WLEDs is an important application in replacing traditional light sources. They are more effective thanks to research and application of energy transmission. Developing materials that emit an efficient, narrow spectrum band was one of the goals for developing light-emitting diode (LED) systems. This paper describes the energy transfer Ce³⁺ → (Tb³⁺) n → Eu³⁺ that allows the sensor to emit lines Eu³⁺ 5D_J → 7F₀ by the absorption transition Ce³⁺ 4f₁ → 5d₁ allowed in the spectral region near UV and purple. . This energy transfer is shown in LaF₃.