Manipulating Organic Semiconductor Morphology with Visible Light

  • Michael Korning Sørensen
  • , Anders Skovbo Gertsen
  • , Rocco Peter Fornari
  • , Binbin Zhou
  • , Xiaotong Zhang
  • , Peter Uhd Jepsen
  • , Edoardo Stanzani
  • , Shinhee Yun
  • , Marcial Fernández Castro
  • , Matthias Schwartzkopf
  • , Alexandros Koutsioubas
  • , Piotr de Silva
  • , Moises Espindola-Rodriguez
  • , Luise Theil Kuhn
  • , Jens Wenzel Andreasen*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

A method is presented to manipulate the final morphology of roll-to-roll slot-die coated poly(3-hexylthiophene) (P3HT) by optically exciting the p-type polymer in solution while coating. These results provide a comprehensive picture of the entire knowledge chain, from demonstrating how to apply the authors’ method to a fundamental understanding of the changes in morphology and physical properties induced by exciting P3HT while coating. By combining results from density functional theory and molecular dynamics simulations with a variety of X-ray experiments, absorption spectroscopy, and THz spectroscopy, the relationship between morphology and physical properties of the thin film is demonstrated. Specifically, in P3HT films excited with light during deposition, changes in crystallinity and texture with more face-on orientation and increased out-of-plane charge mobility are observed.

Original languageEnglish
Article number2212835
JournalAdvanced Functional Materials
Volume33
Issue number10
DOIs
Publication statusPublished - 2 Mar 2023
Externally publishedYes

Keywords

  • density functional theory
  • gisaxs/gisans/giwaxs
  • led light treatment
  • molecular dynamics
  • organic semiconductors
  • roll-to-roll slot-die coating
  • thz spectroscopy

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