Solution processable MOF yellow phosphor with exceptionally high quantum efficiency

Qihan Gong; Zhichao Hu; Benjamin J. Deibert; Thomas J. Emge; Simon J. Teat; Debasis Banerjee; Brianna Mussman; Nathan D. Rudd; Jing Li

doi:10.1021/ja509446h

Solution processable MOF yellow phosphor with exceptionally high quantum efficiency

Qihan Gong, Zhichao Hu, Benjamin J. Deibert, Thomas J. Emge, Simon J. Teat, Debasis Banerjee, Brianna Mussman, Nathan D. Rudd, Jing Li

Rutgers University

Research output: Contribution to journal › Article

146 Citations (Scopus)

Abstract

An important aspect in the research and development of white light-emitting diodes (WLEDs) is the discovery of highly efficient phosphors free of rare-earth (RE) elements. Herein we report the design and synthesis of a new type of RE-free, blue-excitable yellow phosphor, obtained by combining a strongly emissive molecular fluorophore with a bandgap modulating co-ligand, in a three-dimensional metal organic framework. [Zn₆(btc)₄(tppe)₂(DMA)₂] (btc = benzene-1,3,5-tricarboxylate, tppe = 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethene, DMA = dimethylacetamide) crystallizes in a new structure type and emits bright yellow light when excited by a blue light source. It possesses the highest internal quantum yield among all RE-free, blue-excitable yellow phosphors reported to date, with a value as high as 90.7% (λ_ex = 400 nm). In addition to its high internal quantum yield, the new yellow phosphor also demonstrates high external quantum yield, luminescent and moisture stability, solution processability, and color tunability, making it a promising material for use in phosphor conversion WLEDs.

Original language	English
Pages (from-to)	16724-16727
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	136
Issue number	48
DOIs	https://doi.org/10.1021/ja509446h
Publication status	Published - Dec 3 2014

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ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Cite this

Gong, Q., Hu, Z., Deibert, B. J., Emge, T. J., Teat, S. J., Banerjee, D., Mussman, B., Rudd, N. D., & Li, J. (2014). Solution processable MOF yellow phosphor with exceptionally high quantum efficiency. Journal of the American Chemical Society, 136(48), 16724-16727. https://doi.org/10.1021/ja509446h

Solution processable MOF yellow phosphor with exceptionally high quantum efficiency. / Gong, Qihan; Hu, Zhichao; Deibert, Benjamin J.; Emge, Thomas J.; Teat, Simon J.; Banerjee, Debasis; Mussman, Brianna; Rudd, Nathan D.; Li, Jing.

In: Journal of the American Chemical Society, Vol. 136, No. 48, 03.12.2014, p. 16724-16727.

Research output: Contribution to journal › Article

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abstract = "An important aspect in the research and development of white light-emitting diodes (WLEDs) is the discovery of highly efficient phosphors free of rare-earth (RE) elements. Herein we report the design and synthesis of a new type of RE-free, blue-excitable yellow phosphor, obtained by combining a strongly emissive molecular fluorophore with a bandgap modulating co-ligand, in a three-dimensional metal organic framework. [Zn6(btc)4(tppe)2(DMA)2] (btc = benzene-1,3,5-tricarboxylate, tppe = 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethene, DMA = dimethylacetamide) crystallizes in a new structure type and emits bright yellow light when excited by a blue light source. It possesses the highest internal quantum yield among all RE-free, blue-excitable yellow phosphors reported to date, with a value as high as 90.7% (λex = 400 nm). In addition to its high internal quantum yield, the new yellow phosphor also demonstrates high external quantum yield, luminescent and moisture stability, solution processability, and color tunability, making it a promising material for use in phosphor conversion WLEDs.",

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10.1021/ja509446h