Ultrathin Double-Shell Capsules for High Performance Photon Upconversion

Ji Hwan Kang, Sang Seok Lee, Josefa Guerrero, Alberto Fernandez-Nieves, Shin Hyun Kim, Elsa Reichmanis

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Triplet-fusion-based photon upconversion capsules with ultrathin double shells are developed through a single dripping instability in a microfluidic flow-focusing device. An inner separation layer allows use of a brominated hydrocarbon oil-based fluidic core, demonstrating significantly enhanced upconversion quantum yield. Furthermore, a perfluorinated photocurable monomer serves as a transparent shell phase with remote motion control through magnetic nanoparticle incorporation.

Original languageEnglish (US)
Article number1606830
JournalAdvanced Materials
Issue number21
StatePublished - Jun 6 2017


  • anti-Stokes shift
  • emulsions
  • microfluidics
  • triplet–triplet annihilation
  • upconversion

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Ultrathin Double-Shell Capsules for High Performance Photon Upconversion'. Together they form a unique fingerprint.

Cite this