Muhammad Khatib1, Tan‐Phat Huynh2, Yunfeng Deng1, Yehu David Horev1,3, Walaa Saliba1, Weiwei Wu4, Hossam Haick1,3
1The Department of Chemical Engineering, Technion – Israel Institute of Technology, Haifa 3200003, Israel
2Laboratory of Physical Chemistry Faculty of Science and Engineering Åbo Akademi University Porthaninkatu 3‐5 20500 Turku Finland
3The Russell Berrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa, 3200003, Israel
4School of Advanced Materials and Nanotechnology Xidian University Shaanxi 710126 P.R. China
Tóm tắt
AbstractA flexible and stretchable field‐effect transistor (FET) is an essential element in a number of modern electronics. To realize the potential of this device in harsh real‐world conditions and to extend its application spectrum, new functionalities are needed to be introduced into the device. Here, solution‐processable elements based on carbon nanotubes that empower flexible and stretchable FET with high hole‐mobility (µh ≈ 10 cm2 V−1 s−1) and relatively low operating voltages (<8 V) and that retain self‐healing properties of all FET components are reported. The device has repeatable intrinsic and autonomic self‐healing ability, namely without use of any external trigger, enabling the restoration of its electrical and mechanical properties, both after microscale damage or complete cut of the device—for example by a scissor. The device can be repeatedly stretched for >200 cycles of up to 50% strain without a significant loss in its electrical properties. The device is applicable in the form of a ≈3 µm thick freestanding skin tattoo and has multifunctional sensing properties, such as detection of temperature and humidity. With this unprecedented biomimetic transistor, highly sustainable and reliable soft electronic applications can be introduced.
