Effects of gamma radiation on the photoluminescence properties of polycarbonate matrices doped with terbium complex

Forster, Pedro Lima; Parra, D.F.; Jiang, Kai; Fermino, Danilo Marin; Brito, Hermi F.; Lugão, Ademar B.

doi:10.1016/j.radphyschem.2009.08.026

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…Balamurugan et al [21] developed a rare earth macromolecular complex emitting white light with CIE coordinates (0.28, 0.34) by coordinating different lanthanide complexes with carboxylic functionalized poly(mphenylenevinylene). Forster et al [22] realized the coordination of carbonyl groups present in polycarbonate with rare-earths. Parra et al [23] reported that Eu 3+ complex precursor could be immobilized by Eu-O interaction in the polymer matrix diglycidylmetacrylic (DGMA).…”

mentioning

confidence: 99%

Tunable white light emission of a large area film-forming macromolecular complex with a high color rendering index

Zhang

Wang

Qian

et al. 2018

Opt. Mater. Express

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The technological route of pre-polymerization and post-coordination was employed to obtain a rapid film-forming macromolecular complex emitting white light by simultaneously combining poly (styrene-co-glycidyl methacrylate) with three primary color complexes [r(R)/g(G)/b(B)]. The white light emission of the macromolecular complex was realized by tuning the ratios of the trichromatic complexes or altering excitation wavelengths. Upon excitation at 365 nm, macromolecular complex 5 with R:G:B = 1:10:1 exhibits three discrete characteristic peaks at 458 (blue emission), 543 (green emission), and 612 (red emission) nm. The corresponding CIE coordinates of (0.332, 0.337) are in close proximity to pure white light (0.330, 0.330). Macromolecular complex 3 (R:G:B = 1:8:0.5) achieves white emission being excited at the wavelength of 375 nm. Macromolecular complex 5 was melted at 140 °C, dropped on a 365 nm UV chip, and then cooled to room temperature to fabricate an LED device with CIE coordinates of (0.35, 0.34), CCT of 5306 K, and CRI of 95.2. The prepared macromolecular complex film further shows vivid color reproduction for real objects, confirming the high rendering index of the macromolecular complex. In addition, the macromolecular complex remains stable up to 272.6 °C, meeting the requirements of operating temperature for LEDs. This work establishes a rapid film-forming macromolecular complex with potential application in NUV-WLEDs.

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confidence: 99%

Tunable white light emission of a large area film-forming macromolecular complex with a high color rendering index

Zhang

Wang

Qian

et al. 2018

Opt. Mater. Express

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“…A energia absorvida pela parte orgânica pode ser transferida ao íon metálico, resultando em bandas de emissão intensas na região do visível com grande deslocamento "Stokes" e, geralmente, tempos de vida mais longos que o complexo tal qual. Em consequência, polímeros dopados são matrizes promissoras como dispositivos eletroluminescentes e materiais optoeletrônicos [54][55][56][57][58][59][60][61] .…”

Section: Polímeros Como Matrizes Encapsuladoras De íOns Ln 3+unclassified

Desenvolvimento de sistemas híbridos luminescentes - Polímero:európio(III) com estabilidade térmica e fotoluminescente

Forster¹

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Ao meu filho, Murilo Ribeiro Forster, por me dar a força mesmo quando ela não existe.Aos meus Pais, Vilma e Rubens, e minha irmã, Carla, pela educação base para minha vida e apoio nos meus estudos, e por tudo, sem vocês não sou ninguém.A minha orientadora, Prof a . Dr a . Duclerc Fernandes Parra, pelo tempo, confiança, por todos esses anos de IPEN, IC, Mestrado e Doutorado, por seus pelos "puxões" de orelha quando necessário e, sobretudo, por sua dedicação e infinita paciência comigo, por compartilhar seus conhecimentos comigo, pelo interesse e sugestões valiosas para o desenvolvimento desta Tese, Obrigado!

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Radiation‐Assisted Synthesis of Composites, Materials, Compounds, and Nanostructures

Kharissova¹,

Kharisov²,

Mndez³

2012

Wiley Encyclopedia of Composites

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Modern techniques of radiation synthesis, applied for the synthesis of materials, are reviewed, including ionizing radiation (α‐particles, β‐particles/electron beam, γ‐ and X‐rays, neutron and proton irradiation, and ion beams), as well as nonionizing laser ablation and UV irradiation. Formation and/or modification processes of a series of materials, in particular, for nanostructural composites, on the basis of elemental metals, oxides, salts, and polymers are discussed. Radiation‐fabricated membranes are briefly described.

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Effects of gamma radiation on the photoluminescence properties of polycarbonate matrices doped with terbium complex

Cited by 13 publications

References 14 publications

Tunable white light emission of a large area film-forming macromolecular complex with a high color rendering index

Tunable white light emission of a large area film-forming macromolecular complex with a high color rendering index

Desenvolvimento de sistemas híbridos luminescentes - Polímero:európio(III) com estabilidade térmica e fotoluminescente

Radiation‐Assisted Synthesis of Composites, Materials, Compounds, and Nanostructures

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