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

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

61 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 Sept 2004

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)

User-Defined Keywords

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


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