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Quantum dots and perovskite combined to create new hyper-efficient light-emitting crystal

By - July 16, 2015 2 Pictures

Two optoelectronic materials getting a lot of press these days are perovskite and quantum dots. Both have been individually utilized by researchers to boost sunlight conversion to electrical current in solar cells, and to increase the efficacy of electrically-generated light. Now engineers at the University of Toronto (U of T) have combined both of these materials to create an ultra-efficient, super-luminescent hybrid crystal that they say will enable new records in power-to-light conversion efficiencies.

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Carnegie Mellon to form "living lab" of internet of things through Google initiative

By - July 13, 2015 2 Pictures

When Google proposed its Open Web of Things initiative last December, it was seeking to increase interoperability, security, and an elegant user interface in the global movement towards connected smart devices. The company has awarded half a million dollars towards Carnegie Mellon University to develop its campus and eventually Pittsburg, PA into a "living lab" of cheap and ubiquitous sensors, integrated apps, and user-developed tools to work towards Google's vision of an integrated machine future.

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Connected brains share control of virtual limbs and predict the weather

By - July 13, 2015 1 Picture

If the thought of using a person's brainwaves to control a machine isn't quite enough to make the mind boggle, then mixing signals from multiple brains for the same purpose might just do the job. This far-fetched field of neuroscience is edging ever closer to real-world technology, with a number of recent research efforts achieving significant advances, with mind-controlled drone flight just one example. The latest step forward in this area sees the brains of separate animals hooked up and their combined motor and sensory information used for things like controlling a virtual arm, pattern recognition and even predicting the weather.

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New energy cell can store up solar energy for release at night

By - July 7, 2015 2 Pictures

A photoelectrochemical cell (PEC) is a special type of solar cell that gathers the Sun's energy and transforms it into either electricity or chemical energy used to split water and produce hydrogen for use in fuel cells. In an advance that could help this clean energy source play a stronger role within the smart grid, researchers at the University of Texas, Arlington have found a way to store the electricity generated by a PEC cell for extended periods of time and allow electricity to be delivered around the clock.

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— Science

New dimensions of quantum information added through hyperentanglement

By - July 1, 2015 1 Picture

In quantum cryptography, encoding entangled photons with particular spin states is a technique that ensures data transmitted over fiber networks arrives at its destination without being intercepted or changed. However, as each entangled pair is usually only capable of being encoded with one state (generally the direction of its polarization), the amount of data carried is limited to just one quantum bit per photon. To address this limitation, researchers have now devised a way to "hyperentangle" photons that they say can increase the amount of data carried by a photon pair by as much as 32 times.

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