Biaxially Stretchable Fully Elastic Transistors Based on Rubbery Semiconductor Nanocomposites

Hae Jin Kim, Anish Thukral, Sahil Sharma, Cunjiang Yu

Research output: Contribution to journalArticlepeer-review


A transistor that can be stretchable biaxially is a basic and indispensable component for many emerging applications ranging from wearables to organ implants and to soft robotics. A general approach to enable mechanical stretchability in transistors from existing nonstretchable materials is to create certain mechanical architectures such as in-plane serpentines, out-of-plane wavy structures, kirigami structures, and the hybridization of elastic interconnectors and rigid components. Different from general stretchable transistors, the development of elastic transistors based on rubbery semiconductors nanocomposite of poly(3-hexylthiophene-2,5-diyl) nanofibrils percolated in the silicone rubber matrix is reported. The transistor is fully with elastic materials and manufactured all by solution process. The transistor exhibits a field-effect mobility of 3.3 cm2 V−1 s−1. The elastic transistor can be stretched biaxially with 50% linear strain and 125% areal strain and it retains its electrical performances. The exhibited reliable electrical functions upon mechanically poked or expanded as a skin for pneumatically actuated soft robots illustrate some practical applications of such biaxially stretchable transistors.

Original languageEnglish
Article number1800043
JournalAdvanced Materials Technologies
Issue number6
Publication statusPublished - 2018 Jun

Bibliographical note

Funding Information:
H.-J.K. and A.T. contributed equally to this work. C.Y. would like to acknowledge the partial financial support from the National Science Foundation (Grant Nos. ECCS-1509763 and CMMI-1554499), the Doctoral New Investigator grant from American Chemical Society Petroleum Research Fund, and the Bill D. Cook faculty scholarship support from the Department of Mechanical Engineering at University of Houston.

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Biaxially Stretchable Fully Elastic Transistors Based on Rubbery Semiconductor Nanocomposites'. Together they form a unique fingerprint.

Cite this