All-in-One: Achieving Robust, Strongly Luminescent and Highly Dispersible Hybrid Materials by Combining Ionic and Coordinate Bonds in Molecular Crystals

Wei Liu, Kun Zhu, Simon J. Teat, Gangotri Dey, Zeqing Shen, Lu Wang, Deirdre M O'Carroll, Jing Li

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Extensive research has been pursued to develop low-cost and high-performance functional inorganic-organic hybrid materials for clean/renewable energy related applications. While great progress has been made in the recent years, some key challenges remain to be tackled. One major issue is the generally poor stability of these materials, which originates from relatively fragile/weak bonds between inorganic and organic constituents. Herein, we report a unique "all-in-one" (AIO) approach in constructing robust structures with desired properties. Such approach allows formation of both ionic and coordinate bonds within a molecular cluster, which greatly enhances structural stability while maintaining the molecular identity of the cluster and its high luminescence. The novel AIO structures are composed of various anionic (CumIm+n)n clusters and cationic N-ligands. They exhibit high luminescence efficiency, significantly improved chemical, thermal and moisture stability, and excellent solution processability. Both temperature dependent photoluminescence experiments and DFT calculations are performed to investigate the luminescence origin and emission mechanism of these materials, and their suitability as energy-saving LED lighting phosphors is assessed. This study offers a new material designing strategy that may be generalized to many other material classes.

Original languageEnglish
Pages (from-to)9281-9290
Number of pages10
JournalJournal of the American Chemical Society
Volume139
Issue number27
DOIs
Publication statusPublished - Jul 12 2017

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Molecular crystals
Hybrid materials
Luminescence
Renewable Energy
Lighting
Hot Temperature
Discrete Fourier transforms
Phosphors
Ligands
Light emitting diodes
Costs and Cost Analysis
Energy conservation
Photoluminescence
Temperature
Moisture
Research
Costs
Experiments

ASJC Scopus subject areas

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

Cite this

All-in-One : Achieving Robust, Strongly Luminescent and Highly Dispersible Hybrid Materials by Combining Ionic and Coordinate Bonds in Molecular Crystals. / Liu, Wei; Zhu, Kun; Teat, Simon J.; Dey, Gangotri; Shen, Zeqing; Wang, Lu; O'Carroll, Deirdre M; Li, Jing.

In: Journal of the American Chemical Society, Vol. 139, No. 27, 12.07.2017, p. 9281-9290.

Research output: Contribution to journalArticle

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