Chemically Recyclable Conjugated Polymer and One-Shot Preparation of Thermally Stable and Efficient Bulk-Heterojunction from Recycled Monomer

Hyunjung Jin, Kyuyeon Kim, Sungmin Park, Jin Hyeong Rhee, Hyungju Ahn, Dong Jun Kim, Kyeongmin Kim, Jun Hong Noh, Taek Soo Kim, Eul Yong Shin, Hae Jung Son

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Recyclable conjugated polymers are important for realizing eco-friendly electronics with advantages of solution processability and flexibility. A recyclable conjugated polymer, PY-TIP is developed, of which a key monomer is successfully extracted via a mild depolymerization process and is reused for the synthesis of novel conjugated polymers. One-shot preparation of polymer acceptor and its bulk-heterojunction (BHJ) is demonstrated from the recycled monomer, Y5-TA, for the first time and the resulting BHJ film shows optimal nanoscale morphology for efficient charge generation and transport. As a result, the solar cells prepared using the BHJ film show a higher efficiency of 13.08% and much improved thermal and mechanical stability compared with those based on the small molecular acceptor. These results are important in that the various polymers can be prepared from the recycled monomer in a solid state without organic solvents and purification step and this strategy is effective for improving the thermal and mechanical stability of the BHJ film as well as achieving high photovoltaic performance. PY-TIP is exemplary in that it can reproduce its monomer which can be used to synthesize conjugated polymers with novel chemical structures and physical properties. This work provides a design guideline for developing recyclable conjugated polymers with dynamic covalent bonds.

Original languageEnglish
Article number2304930
JournalAdvanced Functional Materials
Volume33
Issue number47
DOIs
Publication statusPublished - 2023 Nov 16

Bibliographical note

Publisher Copyright:
© 2023 Wiley-VCH GmbH.

Keywords

  • bulk-heterojunction
  • morphological thermal stability
  • one-shot preparation
  • organic photovoltaics
  • recyclable conjugated molecules

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Biomaterials
  • General Materials Science
  • Condensed Matter Physics
  • Electrochemistry

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