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Upconverting photons at the molecular scale with lanthanide complexes.

Loïc J Charbonnière1, Aline M Nonat1, Richard C Knighton1,2

  • 1Equipe de Synthèse Pour L'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR7178, CNRS, Université de Strasbourg, ECPM 67087 Strasbourg Cedex France l.charbonn@unistra.fr.

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Molecular upconversion (UC) using lanthanide coordination complexes has advanced significantly, moving from solid-state to molecular systems. This field shows great promise, with rapid improvements in efficiency and a bright future.

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Area of Science:

  • * Materials Science
  • * Nanotechnology
  • * Photochemistry

Background:

  • * Molecular upconversion (UC) has evolved from solid-state and nanoparticular systems to the molecular domain.
  • * Lanthanide-based coordination complexes are central to advancements in UC technology.
  • * Significant progress has been made, with luminance efficiency increasing by over four orders of magnitude in the past decade.

Purpose of the Study:

  • * To summarize key milestones in molecular upconversion (UC) using lanthanide coordination complexes.
  • * To explain the mechanisms of photon generation in different UC approaches.
  • * To provide a critical perspective on the benefits and limitations of current UC methods.

Main Methods:

  • * Review and synthesis of major advancements in molecular upconversion.
  • * Analysis of mechanistic pathways for photon generation.
  • * Critical evaluation of existing UC processes and their efficiency.

Main Results:

  • * Detailed overview of the progression of UC from solid-state to molecular systems.
  • * Explanation of the mechanistic intricacies behind various UC photon generation methods.
  • * Assessment of the benefits and drawbacks of different UC approaches.

Conclusions:

  • * Molecular upconversion is a rapidly expanding and improving field.
  • * Recent advancements have led to substantial increases in luminance efficiency.
  • * The future of molecular UC, particularly with lanthanide coordination complexes, is highly promising.