Multistimuli two-color luminescence switching via different slip-stacking of highly fluorescent molecular sheets

Seong Jun Yoon, Jong Won Chung, Johannes Gierschner, Kil Suk Kim, Moon Gun Choi, Dongho Kim, Soo Young Park

Research output: Contribution to journalArticle

617 Citations (Scopus)

Abstract

Color tuning and switching of the solid-state luminescence of organic materials are attractive subjects for both the fundamental research and practical applications such as optical recording. We report herein cyanostilbene-based highly luminescent molecular sheets which exhibit two-color fluorescence switching in response to pressure, temperature, and solvent vapor. The origin for the multistimuli luminescence switching is the two-directional shear-sliding capability of molecular sheets, which are formed via intermolecular multiple C-H⋯N and C-H⋯O hydrogen bonds. The resulting two distinctive crystal phases are promoted by different modes of local dipole coupling, which cause a substantial alternation of π-π overlap. These changes can be directly correlated with the subsequent intermolecular excitonic and excimeric coupling in both phases, as demonstrated by an in-depth theory-assisted spectroscopic and structural study. Finally, we have prepared a first device demonstrator for rewritable fluorescent optical recording media which showed multistimuli luminescence tuning with fast response. Our multistimuli responsive system is unique in terms of the slip-stacking of molecular sheets and thus provides a novel concept of rewritable fluorescent optical recording media.

Original languageEnglish
Pages (from-to)13675-13683
Number of pages9
JournalJournal of the American Chemical Society
Volume132
Issue number39
DOIs
Publication statusPublished - 2010 Oct 6

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Optical recording
Luminescence
Color
Tuning
Hydrogen
Hydrogen bonds
Fluorescence
Vapors
Pressure
Equipment and Supplies
Crystals
Temperature
Research

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Yoon, Seong Jun ; Chung, Jong Won ; Gierschner, Johannes ; Kim, Kil Suk ; Choi, Moon Gun ; Kim, Dongho ; Park, Soo Young. / Multistimuli two-color luminescence switching via different slip-stacking of highly fluorescent molecular sheets. In: Journal of the American Chemical Society. 2010 ; Vol. 132, No. 39. pp. 13675-13683.
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abstract = "Color tuning and switching of the solid-state luminescence of organic materials are attractive subjects for both the fundamental research and practical applications such as optical recording. We report herein cyanostilbene-based highly luminescent molecular sheets which exhibit two-color fluorescence switching in response to pressure, temperature, and solvent vapor. The origin for the multistimuli luminescence switching is the two-directional shear-sliding capability of molecular sheets, which are formed via intermolecular multiple C-H⋯N and C-H⋯O hydrogen bonds. The resulting two distinctive crystal phases are promoted by different modes of local dipole coupling, which cause a substantial alternation of π-π overlap. These changes can be directly correlated with the subsequent intermolecular excitonic and excimeric coupling in both phases, as demonstrated by an in-depth theory-assisted spectroscopic and structural study. Finally, we have prepared a first device demonstrator for rewritable fluorescent optical recording media which showed multistimuli luminescence tuning with fast response. Our multistimuli responsive system is unique in terms of the slip-stacking of molecular sheets and thus provides a novel concept of rewritable fluorescent optical recording media.",
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Multistimuli two-color luminescence switching via different slip-stacking of highly fluorescent molecular sheets. / Yoon, Seong Jun; Chung, Jong Won; Gierschner, Johannes; Kim, Kil Suk; Choi, Moon Gun; Kim, Dongho; Park, Soo Young.

In: Journal of the American Chemical Society, Vol. 132, No. 39, 06.10.2010, p. 13675-13683.

Research output: Contribution to journalArticle

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