High-Performance Blue-Excitable Yellow Phosphor Obtained from an Activated Solvochromic Bismuth-Fluorophore Metal-Organic Framework

Benjamin J. Deibert, Ever Velasco, Wei Liu, Simon J. Teat, William P. Lustig, Jing Li

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We report the synthesis, structure, and photoluminescence properties of a new bismuth based luminescent metal-organic framework (LMOF). The framework is comprised of a 9-coordinated Bi3+ building unit and 4′, 4′, 4′′′′′, 4′′′′′-(ethene-1,1,2,2-tetrayl)tetrakis([1,1′-biphenyl]-4-carboxylic acid) (H4tcbpe) organic linker, which has strong yellow aggregation induced emission (AIE). The structure can be viewed as two interpenetrated 4,4-anionic nets that are stabilized by K+ ions forming one-dimensional helical inorganic chains by connecting bismuth nodes through shared oxygen bonds. The as-made LMOF has a bluish emission centered at 459 nm with an internal quantum yield of 57% when excited at 360 nm. The emission properties of the LMOF were found to be highly solvochromic with respect to DMF. Upon partial solvent removal, the framework undergoes significant red-shifting to a greenish emission centered at 500 nm. Complete removal of DMF results in additional red-shifting fluorescence coupled with structural changes. The resulting material has strong blue-excitable (455 nm) yellow emission centered at 553 nm, with a quantum yield of 74%, which is maintained after heating in air for 5 days at 90 °C. This is the second highest quantum yield value for blue-excited yellow emission among all reported LMOFs.

Original languageEnglish
Pages (from-to)4178-4182
Number of pages5
JournalCrystal Growth and Design
Volume16
Issue number8
DOIs
Publication statusPublished - Aug 3 2016

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Bismuth
Fluorophores
Quantum yield
Phosphors
bismuth
phosphors
Metals
metals
Carboxylic Acids
Carboxylic acids
Photoluminescence
Agglomeration
Fluorescence
Ions
Oxygen
Heating
Air
carboxylic acids
photoluminescence
fluorescence

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

High-Performance Blue-Excitable Yellow Phosphor Obtained from an Activated Solvochromic Bismuth-Fluorophore Metal-Organic Framework. / Deibert, Benjamin J.; Velasco, Ever; Liu, Wei; Teat, Simon J.; Lustig, William P.; Li, Jing.

In: Crystal Growth and Design, Vol. 16, No. 8, 03.08.2016, p. 4178-4182.

Research output: Contribution to journalArticle

Deibert, Benjamin J. ; Velasco, Ever ; Liu, Wei ; Teat, Simon J. ; Lustig, William P. ; Li, Jing. / High-Performance Blue-Excitable Yellow Phosphor Obtained from an Activated Solvochromic Bismuth-Fluorophore Metal-Organic Framework. In: Crystal Growth and Design. 2016 ; Vol. 16, No. 8. pp. 4178-4182.
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