An Amorphous Donor-Acceptor Conjugated Polymer with Both High Charge Carrier Mobility and Luminescence Quantum Efficiency

Hu Chen; Mingcong Wang; Guangjie Xia; Chen Yang; Lu Zhang; Mark Nikolka; Weimin Zhang; Camila Cendra; Wanli Liu; Shunan Zhao; Jinfeng Zeng; Cao Zou; Julien Gorenflot; Alberto Salleo; Frédéric Laquai; Henning Sirringhaus; Iain McCulloch

doi:10.1002/anie.202421199

An Amorphous Donor-Acceptor Conjugated Polymer with Both High Charge Carrier Mobility and Luminescence Quantum Efficiency

Angew Chem Int Ed Engl. 2025 Jan 8:e202421199. doi: 10.1002/anie.202421199. Online ahead of print.

Authors

Hu Chen¹, Mingcong Wang², Guangjie Xia², Chen Yang³, Lu Zhang⁴, Mark Nikolka⁴, Weimin Zhang⁵, Camila Cendra⁶, Wanli Liu², Shunan Zhao², Jinfeng Zeng⁷, Cao Zou⁷, Julien Gorenflot⁸, Alberto Salleo⁹, Frédéric Laquai¹⁰, Henning Sirringhaus¹¹, Iain McCulloch¹²

Affiliations

¹ Great Bay University, School of Physical Sciences, Dongguan, Dongguan, CHINA.
² Great Bay University, School of Physical Sciences, CHINA.
³ Southeast University, School of Electronic Science and Engineering, CHINA.
⁴ Cambridge University: University of Cambridge, Department of Physics, CHINA.
⁵ Oxford University: University of Oxford, Department of Chemistry, CHINA.
⁶ Stanford University, Department of Materials Science and Engineering, CHINA.
⁷ Songshan Lake Materials Laboratory, Songshan Lake Materials Laboratory, CHINA.
⁸ King Abdullah University of Science and Technology, KAUST Solar Center, SAUDI ARABIA.
⁹ Stanford University, Department of Materials Science and Engineering, UNITED STATES OF AMERICA.
¹⁰ King Abdullah University of Science and Technology, kaust solart center, SAUDI ARABIA.
¹¹ Cambridge University: University of Cambridge, Department of Physics, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
¹² Oxford University: University of Oxford, Department of Chemistry, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.

PMID: 39778030
DOI: 10.1002/anie.202421199

Abstract

Organic semiconducting polymers play a pivotal role in the development of field-effect transistors (OFETs) and organic light-emitting diodes (OLEDs), owing to their cost-effectiveness, structural versatility, and solution processability. However, achieving polymers with both high charge carrier mobility (μ) and photoluminescence (PL) quantum yield (Φ) remains a challenge. In this work, we present the design and synthesis of a novel donor-acceptor π-conjugated polymer, TTIF-BT, featuring a di-Thioeno[3,2-b] ThioenoIndeno[1,2-b] Fluorene (TTIF) backbone as the donor component. TTIF-BT exhibits comparable hole mobility and enhanced interchain-mediated emissions compared to state-of-the-art semiconducting IDT-BT, leading to a remarkable Φ·μ value of ~0.084 cm2 V-1 s-1. Through time-resolved absorption and PL techniques, we propose a model to extract the spectral weight of interchain-mediated emissions, yielding 62% in TTIF-BT. Our results introduce a high-performance semiconducting polymer, which has potential use in next-generation organic optoelectronic devices, including electrically-driven polymer lasers and active-matrix display technologies.

Keywords: Semiconducting polymer, Mobility, Luminescence Quantum Efficiency.