Green and red three-photon upconversion from polymeric lanthanide(III) complexes

Ka Leung Wong, Wai Ming Kwok, Wing Tak Wong, David Lee Phillips, Kok Wai Cheah

Research output: Journal article publicationJournal articleAcademic researchpeer-review

57 Citations (Scopus)


Red light, green light! Emission through three-photon upconversion processes from polymeric organic-lanthanide complexes (lanthanide, Ln = Tb, Eu) was observed upon excitation of the tripodal organic ligand at 845 nm. Multiphoton absorption by the ligand followed by a transfer of energy to Ln (see picture; S = singlet state, T = triplet state) gives rise to characteristic Eu (red) or Tb (green) emission.
Original languageEnglish
Pages (from-to)4659-4662
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number35
Publication statusPublished - 6 Sep 2004
Externally publishedYes


  • Energy transfer
  • Lanthanides
  • Luminescence
  • Tripodal ligands
  • Upconversion

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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