Category Technology/Electronics

Dynamically tunable multispot optofluidic waveguide.

Novel technology combines high-performance microfluidics for sample processing with dynamic optical tuning and switching, all on a low-cost “chip” made of a flexible silicone material. In previous devices from Schmidt’s lab, optical functions were built into silicon chips using the same fabrication technology used to make computer chips. The new device is made entirely of polydimethylsiloxane (PDMS), a soft, flexible material used in microfluidics as well as in products such as contact lenses and medical devices.

“We can use this fabrication method now to build an all-in-one device that allows us to do biological sample processing and optical detection on one chip,” said Schmidt, the Kapany Professor of Optoelectronics and director of th...

The new material comprising tin, iodine and phosphorus possesses a double helix structure which provides the semiconductor with extreme mechanical flexibility. Credit: Prof. Tom Nilges / TUM

New flexible semiconductor for electronics, solar technology and photo catalysis. It is the double helix, with its stable and flexible structure of genetic information, that made life on Earth possible in the first place. Now a team from the Technical University of Munich (TUM) has discovered a double helix structure in an inorganic material. The material called SnIP, comprising tin (Sn), iodine (I) and phosphorus(P) is a semiconductor with extraordinary optical and electronic properties, and extreme mechanical flexibility.The centimeter-long fibers can be arbitrarily bent without breaking.

“This prope...

A schematic (left) and photograph (right) of a photonic dew point temperature sensor developed by Ji Fang Tao and co-workers, which works by detecting changes in the refraction of light as water molecules condense onto the device. (left) © 2015 IEEE. Reprinted, with permission, from Ref 1. (right) © 2016 A*STAR Institute of Microelectronics

Electromagnetic waves created on a layer of organic molecules could provide the perfect on-chip light source for future quantum communication systems...

A piece of fabric was woven with special strands of material that harvest electricity from the sun and motion. Credit: Georgia Tech

Georgia Institute of Tech researchers have developed a fabric that can simultaneously harvest energy from both sunshine and motion. Combining two types of electricity generation into one textile paves the way for developing garments that could provide their own source of energy to power devices such as smart phones or GPS. “This hybrid power textile presents a novel solution to charging devices in the field from something as simple as the wind blowing on a sunny day,” said Prof. Zhong Lin Wang.

To make the fabric, Wang’s team used a commercial textile machine to weave together solar cells constructed from lightweight polymer fibers with fiber-based triboelectr...