Facile synthesis of ultralow-band-gap alkoxythiophene-flanked diketopyrrolopyrrole homopolymers via FeCl 3 -mediated oxidative polymerization

Key Points

• This research aims to develop new conjugated polymers that absorb strongly in the near-infrared region for various applications.
• Conducted oxidative polymerization using FeCl3 as a catalyst.
• Synthesized alkoxythiophene-flanked diketopyrrolopyrrole homopolymers under controlled conditions.
• Analyzed the optical properties of the resulting polymers.
• The synthesized polymers exhibited strong absorption in the NIR-II region.
• Enhanced properties indicate potential for use in optoelectronic devices.
• Results show the polymers are viable for biomedical applications.