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High-Performance Furan-Containing Conjugated Polymer for Environmentally Benign Solution Processing.

Sang Myeon Lee1, Hae Rang Lee2, A-Reum Han2

  • 1Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST) , 50 UNIST-gil, Ulju-gun, Ulsan 44919, South Korea.

ACS Applied Materials & Interfaces
|April 22, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed new furan-based semiconducting polymers (PFDPPTT-Si) for greener electronics. These polymers show high charge mobility, especially in environmentally friendly solvents, advancing sustainable electronic materials.

Keywords:
diketopyrrolopyrrolefuran-containing conjugated polymersnonchlorinated solventsorganic field-effect transistorssiloxane-hybrid chains

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Polymer Chemistry

Background:

  • Developing semiconducting polymers with both high charge transport and good processability in green solvents is challenging.
  • Furan-based polymers offer better solubility than thiophene analogues, presenting an opportunity for improved environmental compatibility.
  • Understanding the impact of furan vs. thiophene units on polymer structure and performance is crucial for advancing organic electronics.

Purpose of the Study:

  • To synthesize and characterize furanyl-diketopyrrolopyrrole polymer (PFDPPTT-Si) and its thienyl analogue (PTDPPTT-Si).
  • To investigate the subtle structural and electronic property changes induced by replacing thiophene with furan units.
  • To evaluate the charge transport capabilities and processability of these polymers in both chlorinated and non-chlorinated solvents.

Main Methods:

  • Synthesis and characterization of PFDPPTT-Si and PTDPPTT-Si polymers.
  • Fabrication of organic field-effect transistors (OFETs) using both polymer types.
  • Device performance evaluation under identical processing conditions using chlorinated and non-chlorinated solvents.
  • Analysis of polymer film morphology and π-stacking aggregation.

Main Results:

  • PTDPPTT-Si processed in chlorinated solvents showed higher hole mobility (3.57 cm² V⁻¹ s⁻¹) due to tightly aggregated π-stacking.
  • PFDPPTT-Si, benefiting from enhanced solubility, achieved higher mobility (1.87 cm² V⁻¹ s⁻¹) in non-chlorinated solvents compared to PTDPPTT-Si.
  • The achieved mobility of 1.87 cm² V⁻¹ s⁻¹ is the highest reported for furan-containing polymers processed in non-chlorinated solvents.

Conclusions:

  • Furan-based semiconducting polymers can achieve high performance with environmentally benign processing.
  • The choice of polymer backbone (furan vs. thiophene) significantly impacts solubility, morphology, and charge transport properties.
  • This work represents a significant step towards developing high-performance, environmentally compatible organic electronics and revitalizing research in furan-based semiconductors.