Elastic electronics based on micromesh-structured rubbery semiconductor films

Ying Shi Guan, Faheem Ershad, Zhoulyu Rao, Zhifan Ke, Ernesto Curty da Costa, Qian Xiang, Yuntao Lu, Xu Wang, Jianguo Mei, Peter Vanderslice, Camila Hochman-Mendez, Cunjiang Yu

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)881-892
Number of pages12
JournalNature Electronics
Volume5
Issue number12
DOIs
StatePublished - Dec 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

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