Elastic electronics based on micromesh-structured rubbery semiconductor films
Elastic electronics based on micromesh-structured rubbery semiconductor films
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DOI：
10.1038/s41928-022-00874-z
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发表时间：
2022-11-28
影响因子：
34.3
通讯作者：
Yu, Cunjiang
中科院分区：
文献类型：
--
作者：
Guan, Ying-Shi;Ershad, Faheem;Yu, Cunjiang
可与生物组织无缝集成的软电子器件的开发需要具有高载流子迁移率的固有可拉伸橡胶半导体。然而，橡胶半导体的可扩展制造仍然具有挑战性，特别是使用简单且可重复的方法。在这里，我们报告橡胶半导体薄膜，是基于横向相分离诱导的微网。将两种聚合物共混物溶液旋涂在基底上并通过横向相分离形成微网形态，所述微网形态由连续的有机富阻剂相和隔离的富阻剂相组成。微网结构的橡胶半导体同时提供有效的电荷传输和机械拉伸性，并通过使用不同的聚合物共混物，我们创建p型和n型橡胶半导体薄膜。这些薄膜被用来制造橡胶晶体管、互补反相器和双层异质结光电探测器，这些光电探测器甚至可以在高达50%的应变下工作。我们还创建了一个电子贴片，它具有完全由橡胶材料制成的晶体管有源矩阵，可用于绘制大鼠心脏的生物电位。基于横向相分离诱导的微网的半导体聚合物薄膜可用于创建晶体管，互补逆变器和双层异质结光电探测器，可以在高达50%的应变下工作。
The development of soft electronics that can be seamlessly integrated with biological tissue requires intrinsically stretchable rubbery semiconductors with high carrier mobilities. However, the scalable fabrication of rubbery semiconductors remains challenging, particularly using methods that are simple and reproducible. Here we report rubbery semiconductor thin films that are based on a lateral-phase-separation-induced micromesh. A two-polymer blend solution is spin coated on a substrate and forms micromesh morphologies via lateral phase separation, consisting of a continuous organic semiconductor-rich phase and an isolated elastomer-rich phase. The micromesh-structured rubbery semiconductors simultaneously provide efficient charge transport and mechanical stretchability, and by using different polymer blends, we create both p-type and n-type rubbery semiconductor films. The films are used to construct rubbery transistors, complementary inverters and bilayer heterojunction photodetectors that can function even under applied strains of up to 50%. We also create an electronic patch that has a transistor active matrix fully made of rubbery materials and can be used to map the biopotentials of a rat heart.Semiconductor polymer films that are based on a lateral-phase-separation-induced micromesh can be used to create transistors, complementary inverters and bilayer heterojunction photodetectors that can function under applied strains of up to 50%.