A transparent single-friction-surface triboelectric generator and self-powered touch sensor

作者：Meng, Bo^*; Tang, Wei; Too, Zhi-han; Zhang, Xiaosheng; Han, Mengdi; Liu, Wen; Zhang, Haixia

来源：Energy & Environmental Science, 2013, 6(11): 3235-3240.

DOI：10.1039/c3ee42311e

• ENERGY-CONVERSION
• NANOGENERATOR
• CHARGE
• DRIVEN

We present a single-friction-surface triboelectric generator (STEG). The STEG is transparent and flexible, making possible the use of triboelectric generators in an extended range of applications. This device is fabricated in a simple and very low-cost way. When tapped with a finger, the STEG with micro-patterned PDMS surface achieved an open-circuit voltage over 130 V with a short-circuit current density of about 1 mu A cm(-2). A STEG with a flat PET surface is employed as a transparent cover on the screen of a smartphone to generate electric energy from the control motion of the users. The STEG can directly power 3 LEDs when the phone screen is tapped during normal use. In addition, based on the STEG, we have developed a self-powered visualized touch sensor with 4 STEGs serving as the touch pads. The STEG shows promise for applications in systems such as self-powered touch panels and artificial skins.

• 出版日期2013-11
• 单位北京大学