Pre-Endcapping of Hyperbranched Polymers toward Intrinsically Stretchable Semiconductors with Good Ductility and Carrier Mobility

Zhou，Zhaoqiong1; Luo，Nan1; Cui，Tianqiang1; Luo，Liang1; Pu，Mingrui2; Wang，Ying1; He，Feng2; Jia，Chunyang3; Shao，Xiangfeng1; Zhang，Hao Li1; Liu，Zitong1

2024

10.1002/adma.202313312

Advanced Materials   影响因子和分区

0935-9648

1521-4095

The advancement of semiconducting polymers stands as a pivotal milestone in the quest to realize wearable electronics. Nonetheless, endowing semiconductor polymers with stretchability without compromising their carrier mobility remains a formidable challenge. This study proposes a “pre-endcapping” strategy for synthesizing hyperbranched semiconducting polymers (HBSPs), aiming to achieve the balance between carrier mobility and stretchability for organic electronics. The findings unveil that the aggregates formed by the endcapped hyperbranched network structure not only ensure efficient charge transport but also demonstrate superior tensile resistance. In comparison to linear conjugated polymers, HBSPs exhibit substantially larger crack onset strains and notably diminished tensile moduli. It is evident that the HBSPs surpass their linear counterparts in terms of both their semiconducting and mechanical properties. Among HBSPs, HBSP-72h-2.5 stands out as the preeminent candidate within the field of inherently stretchable semiconducting polymers, maintaining 93% of its initial mobility even when subjected to 100% strain (1.41 ± 0.206 cm V s). Furthermore, thin film devices of HBSP-72h-2.5 remain stable after undergoing repeated stretching and releasing cycles. Notably, the mobilities are independent of the stretching directions, showing isotropic charge transport behavior. The preliminary study makes this “pre-endcapping” strategy a potential candidate for the future design of organic materials for flexible electronic devices.

carrier mobility diketopyrrolopyrrole hyperbranched semiconducting polymers pre-endcapping stretchability

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85184727726

Scopus

1.State Key Laboratory of Applied Organic Chemistry (SKLAOC),Key Laboratory of Special Function Materials and Structure Design,College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou,730000,China
2.Guangdong Provincial Key Laboratory of Catalysis,Shenzhen Grubbs Institute and Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu,611731,China

Zhou，Zhaoqiong,Luo，Nan,Cui，Tianqiang,et al. Pre-Endcapping of Hyperbranched Polymers toward Intrinsically Stretchable Semiconductors with Good Ductility and Carrier Mobility[J]. Advanced Materials,2024,36(19).

Zhou，Zhaoqiong.,Luo，Nan.,Cui，Tianqiang.,Luo，Liang.,Pu，Mingrui.,...&Liu，Zitong.(2024).Pre-Endcapping of Hyperbranched Polymers toward Intrinsically Stretchable Semiconductors with Good Ductility and Carrier Mobility.Advanced Materials,36(19).

Zhou，Zhaoqiong,et al."Pre-Endcapping of Hyperbranched Polymers toward Intrinsically Stretchable Semiconductors with Good Ductility and Carrier Mobility".Advanced Materials 36.19(2024).