Category Technology/Electronics

Schematic illustration and chemical structure of semi-printed plastic solar cells in air, using food additive o-MA as solvent. Credit: Long Ye, NC State

Researchers have created an efficient, semi-printed plastic solar cell without environmentally hazardous halogen solvents. These solar cells can be manufactured at room temperature, which has implications for large-scale commercial production. Plastic solar cells, or organic photovoltaics, are popular because they are lightweight, flexible, transparent and inexpensive to manufacture, making them useful in multiple applications. Unfortunately, the halogen-containing solvents used in their manufacture are an obstacle to large-scale commercialization...

TUM researchers (l-r) Fabian Steiner, Georg Böcherer, and Patrick Schulte with the statue of Claude Shannon, father of information theory. Credit: Denise Panyik-Dale/Alcatel-Lucent

Researchers have achieved unprecedented transmission capacity and spectral efficiency in an optical communications field trial with a new modulation technique. The breakthrough research could extend the capability of optical networks to meet surging data traffic demands.

In an optical communications field trial, Nokia Bell Labs, Deutsche Telekom T-Labs and the TU Munich showed that the flexibility and performance of optical networks can be maximized when adjustable transmission rates are dynamically adapted to channel conditions and traffic demands...

Memristor chip. Credit: Image courtesy of University of Southampton

A nanoscale device, called a memristor, could be the ‘missing link’ in the development of implants that use electrical signals from the brain to help treat medical conditions. Monitoring neuronal cell activity is fundamental to neuroscience and the development of neuroprosthetics – biomedically engineered devices that are driven by neural activity. However, a persistent problem is the device being able to process the neural data in real-time, which imposes restrictive requirements on bandwidth, energy and computation capacity.

In a new study, published in Nature Communications, the researchers showed that memristors could provide real-time processing of neuronal signals (spiking events) leading to efficient data compressio...