Large-Scale Rapid Positioning of Hierarchical Assemblies of Conjugated Polymers via Meniscus-Assisted Self-Assembly

Shuang Pan, Juan Peng, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Rapid and deliberate patterning of nanomaterials over a large area is desirable for device manufacturing. We report a method for meniscus-assisted self-assembly (MASA)-enabled rapid positioning of hierarchically assembled dots and stripes composed of luminescent conjugated polymer over two length scales. Periodically arranged conjugated poly(9,9-dioctylfluorene) (PFO) polymers, yield dots, punch-holes and stripes at microscopic scale via MASA. Concurrent self-assembly of PFOs into two-dimensional lenticular crystals within each dot, punch-hole and stripe is realized at nanoscopic scale. Hierarchical assembly is achieved by constraining the evaporation of the PFOs solution in two approximately parallel plates via a MASA process. The three-phase contact line (TCL) of the liquid meniscus of the PFOs was printed using the upper plate, yielding an array of curved stripes. Rapid creation of hierarchical assemblies via MASA opens up possibilities for large-scale organization of a wide range of soft matters and nanomaterials.

Original languageEnglish
Pages (from-to)11751-11757
Number of pages7
JournalAngewandte Chemie - International Edition
Volume60
Issue number21
DOIs
StatePublished - 17 May 2021

Bibliographical note

Funding Information:
This work was supported by the NSF (CMMI 1727313) and the National Natural Science Foundation of China (21922503).

Publisher Copyright:
© 2021 Wiley-VCH GmbH

Keywords

  • conjugated polymers
  • lenticular crystals
  • meniscus-assisted hierarchical assemblies
  • three-phase contact line

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