Fully rubbery Schottky diode and integrated devices

Seonmin Jang; Hyunseok Shim; Cunjiang Yu

doi:10.1126/sciadv.ade4284

Fully rubbery Schottky diode and integrated devices

Sci Adv. 2022 Nov 25;8(47):eade4284. doi: 10.1126/sciadv.ade4284. Epub 2022 Nov 23.

Authors

Seonmin Jang^{1

2}, Hyunseok Shim^{1

2}, Cunjiang Yu^{1

2

3

4}

Affiliations

¹ Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802, USA.
² Materials Science and Engineering Program, University of Houston, Houston, TX 77204, USA.
³ Department of Mechanical Engineering, Texas Center for Superconductivity, University of Houston, Houston, TX 77204, USA.
⁴ Department of Biomedical Engineering, Department of Materials Science and Engineering, Materials Research Institute, Pennsylvania State University, University Park, PA 16802, USA.

Abstract

A fully rubbery stretchable diode, particularly entirely based on stretchy materials, is a crucial device for stretchable integrated electronics in a wide range of applications, ranging from energy to biomedical, to integrated circuits, and to robotics. However, its development has been very nascent. Here, we report a fully rubbery Schottky diode constructed all based on stretchable electronic materials, including a liquid metal cathode, a rubbery semiconductor, and a stretchable anode. The rubbery Schottky diode exhibited a forward current density of 6.99 × 10^-3 A/cm² at 5 V and a rectification ratio of 8.37 × 10⁴ at ±5 V. Stretchy rectifiers and logic gates based on the rubbery Schottky diodes were developed and could retain their electrical performance even under 30% tensile stretching. With the rubbery diodes, fully rubbery integrated electronics, including an active matrix multiplexed tactile sensor and a triboelectric nanogenerator-based power management system, are further demonstrated.