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Ultrathin Double‐Shell Capsules for High Performance Photon Upconversion |
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| Authors: | Ji‐Hwan Kang Sang Seok Lee Josefa Guerrero Alberto Fernandez‐Nieves Shin‐Hyun Kim Elsa Reichmanis |
| Affiliation: | 1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA;2. Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, South Korea;3. Department of Chemistry and Physics, Augusta University, Augusta, GA, USA;4. School of Physics, Georgia Institute of Technology, Atlanta, GA, USA;5. School of Chemistry and Biochemistry School of Materials Science Engineering, Georgia Institute of Technology, Atlanta, USA |
| Abstract: | 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. |
| Keywords: | anti‐Stokes shift emulsions microfluidics triplet– triplet annihilation upconversion |