Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon

Joonsik Seo, Chandra Kantha, Joonyoung F. Joung, Sungnam Park, Raz Jelinek, Jong Man Kim

Research output: Contribution to journalArticle

Abstract

Because of their unique structural and optical properties, 1D perylene diimide (PDI) derivatives have gained attention for use in optoelectronic devices. However, PDI-containing self-assembled supramolecular systems often are of limited use because they have supramolecular architectures that are held together by weak noncovalent π–π stacking, hydrogen bonding, and hydrophobic interactions. As a result, they are intrinsically unstable under solution-processing conditions. To overcome this limitation, a polydiacetylene (PDA)-based strategy is developed to construct a solvent-resistant and stable PDI assembly. For this purpose, first the monomer PDI–BisDA is generated, in which two polymerizable diacetylene (DA) units are covalently linked to a PDI core. Importantly, 254 nm UV irradiation of self-assembled PDI–BisDA nanofibers forms solvent-resistant and stable PDI–PDA fibers. Owing to the presence of PDA, the generated polymer fibers display an increased photocurrent. In addition, the existence of PDA and PDI moieties in the fiber leads to the occurrence of switchable on–off fluorescence resonance energy transfer (FRET) between the PDI and reversibly thermochromic PDA chromophores.

Original languageEnglish
Article number1901342
JournalSmall
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Perylene
Nanofibers
Fluorescence Resonance Energy Transfer
Photocurrents
Display devices
Fibers
Chromophores
Optoelectronic devices
Structural properties
Hydrogen bonds
Optical properties
Monomers
Irradiation
Derivatives
Polymers
Hydrogen Bonding
Processing
Hydrophobic and Hydrophilic Interactions
Equipment and Supplies
polydiacetylene

Keywords

  • FRET
  • perylene diimide
  • polydiacetylene
  • self-assembly

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

Cite this

Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon. / Seo, Joonsik; Kantha, Chandra; Joung, Joonyoung F.; Park, Sungnam; Jelinek, Raz; Kim, Jong Man.

In: Small, 01.01.2019.

Research output: Contribution to journalArticle

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