articleAngewandte Chemie International EditionDec 4, 2019Closed access

Visible‐Light‐Excited Room‐Temperature Phosphorescence in Water by Cucurbit[8]uril‐Mediated Supramolecular Assembly

JWJie WangZHZizhao HuangXMXiang MaHTHe Tian

East China University of Science and Technology

PubMed
Indexed incrossrefpubmed

Abstract

Solid-state materials with efficient room-temperature phosphorescence (RTP) emissions have found widespread applications in materials science, while liquid or solution-phase pure organic RTP emission systems has been rarely reported, because of the nonradiative decay and quenchers from the liquid medium. Reported here is the first example of visible-light-excited pure organic RTP in aqueous solution by using a supramolecular host-guest assembly strategy. The unique cucurbit[8]uril-mediated quaternary stacking structure allows tunable photoluminescence and visible-light excitation, enabling the fabrication of multicolor hydrogels and cell imaging. The present assembly-induced emission approach, as a proof of…

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Topics & keywords

Topics
Keywords
  • Phosphorescence
  • Photoluminescence
  • Supramolecular chemistry
  • Aqueous solution
  • Excited state
  • Stacking
  • Photochemistry
  • Materials science
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