Flexible Polypropylene Ferroelectret Nanogenerator - Energy From Motion

Using a film-like device that actually can be folded to make more power, Michigan State University researchers have developed a new way to harvest energy from human motion. The low-cost device, known as a nanogenerator, successfully operated an LCD touch screen, a bank of 20 LED lights and a flexible keyboard, all with a simple touching or pressing motion and without the aid of a battery. Project lead investigator Nelson Sepulveda, associate professor of electrical and computer engineering, said: [Read More]

Piezoelectric Nanogenerator for Wearable Electronics Improved

Energy efficiency has been increased by almost 40 times in the latest piezoelectric nanogenerator from The Korea Advanced Institute of Science and Technology (KAIST). A nanogenerator is a self-powered energy producer that converts the kinetic energy of vibrations and mechanical sources into electrical power. It removes the need for external circuits or batteries in electronic devices. The breakthrough is key in achieving sustainable energy generation in isolated, inaccessible, or indoor environments and devices implanted in the human body. [Read More]

Flexible Silver Nanowire Antenna for Wearable Health Monitors

A stretchable antenna that can be designed into wearable technologies has been developed by researchers at North Carolina State University. The researchers were looking to create an antenna which can be stretched, rolled or twisted and always bounce back to the original shape, since wearable systems are subject to a range of stresses as patients move around. Nanowire Polymer Composite To develop a sufficiently resilient and effective antenna, researchers applied silver nanowires in a specific pattern, using a stencil. [Read More]

Carbon Nanotube Flexible Circuits get Power Efficiency Boost

A team of researchers at Stanford has developed a technique to create flexible chips that can withstand power fluctuations in almost the same way as silicon circuits. Flexible electronic devices, like a smartphone that could be folded to fit into a pocket, are on the minds and drawing boards of many engineers these days. One approach being tried involves designing circuits based on flexible electronic fibers called carbon nanotubes, instead of stiff silicon chips. [Read More]