Fine-tuning of the chromaticity of the emission color of organic-inorganic hybrids co-doped with Eu-III, Tb-III, and Tm-III

resumo

A fine-tuning of the emission chromaticity from red to green is, reported for organic-inorganic nanostructured hybrids co-doped with Eu3+, Tb3+, and Tm3+. Raising the temperature from 200 to 300 K changes the color coordinates smoothly from the 1 yellowish-green region of the chromaticity diagram towards the red. This is discussed in terms of thermally activated energy-transfer mechanisms from Tb3+ energy states to the hybrid's emitting levels.

palavras-chave

WHITE-LIGHT EMISSION; COORDINATION-COMPLEXES; LUMINESCENT MATERIALS; CONJUGATED POLYMERS; EUROPIUM COMPLEXES; ENERGY-TRANSFER; ELECTROLUMINESCENCE; GAN; MECHANISMS; PHOSPHORS

categoria

Chemistry; Science & Technology - Other Topics; Materials Science; Physics

autores

Carlos, LD; Ferreira, RAS; Rainho, JP; Bermudez, VD

nossos autores

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