Copper Iodide Based Hybrid Phosphors for Energy-Efficient General Lighting Technologies

Wei Liu, Yang Fang, Jing Li

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


Solid-state-lighting (SSL) is a new lighting technology that is rapidly replacing conventional lighting sources because it is much more energy efficient, longer lasting, and contributes significantly to environmental protection. A main branch of SSL technology is light-emitting diodes (LEDs), and white-light LEDs (WLEDs) are in the greatest demand for general lighting and illumination applications. Current WLED devices rely heavily on rare-earth elements (REEs), which will likely suffer from cost and supply risks and environmental consequences in the near future. Crystalline inorganic–organic hybrid materials based on I–VII binary semiconductors represent a promising material class as REE-free phosphor alternatives. This article provides a brief overview of recent advancement on this material family, with a focus on the rational design, energy-efficient and low-cost synthesis, systematic modification, and optimization of their electronic, optical, and thermal properties. A particular emphasis will be made on our own progress over the past several years in developing four classes of CuI(L) structures with substantially improved performance as energy-saving lighting phosphors. General strategies for structural design, synthesis, and property optimization of these materials will also be discussed.

Original languageEnglish
Article number1705593
JournalAdvanced Functional Materials
Issue number8
Publication statusPublished - Feb 21 2018


  • copper iodide
  • inorganic–organic hybrid materials
  • light-emitting diodes (LEDs)
  • phosphors
  • solid-state-lighting

ASJC Scopus subject areas

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

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