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

Research output: Contribution to journalArticle

124 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% (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.

Original languageEnglish
Pages (from-to)16724-16727
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number48
DOIs
Publication statusPublished - Dec 3 2014

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Quantum efficiency
Phosphors
Light
Quantum yield
Dynamic mechanical analysis
Rare earths
Light emitting diodes
Benzene
Fluorophores
Rare earth elements
Color
Metals
Light sources
Ligands
Energy gap
Moisture
Research

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

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 journalArticle

Gong, Q, Hu, Z, Deibert, BJ, Emge, TJ, Teat, SJ, Banerjee, D, Mussman, B, Rudd, ND & Li, J 2014, 'Solution processable MOF yellow phosphor with exceptionally high quantum efficiency', Journal of the American Chemical Society, vol. 136, no. 48, pp. 16724-16727. https://doi.org/10.1021/ja509446h
Gong, Qihan ; Hu, Zhichao ; Deibert, Benjamin J. ; Emge, Thomas J. ; Teat, Simon J. ; Banerjee, Debasis ; Mussman, Brianna ; Rudd, Nathan D. ; Li, Jing. / Solution processable MOF yellow phosphor with exceptionally high quantum efficiency. In: Journal of the American Chemical Society. 2014 ; Vol. 136, No. 48. pp. 16724-16727.
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