Chemists settle debate about conversion of light

Chemists of Utrecht University and of the Foundation for Fundamental Research on Matter (FOM) have settled the debate about a fundamental question that is relevant to the conversion of one colour into another. They demonstrated ...

Revolutionary solar cells double as lasers

Commercial silicon-based solar cells - such as those seen on the roofs of houses across the country - operate at about 20% efficiency for converting the Sun's rays into electrical energy. It's taken over 20 years to achieve ...

New technique makes LEDs brighter, more resilient

Researchers from North Carolina State University have developed a new processing technique that makes light emitting diodes (LEDs) brighter and more resilient by coating the semiconductor material gallium nitride (GaN) with ...

Bright white rooms key to energy savings

Trials testing the effect of interior paints containing titanium dioxide on the energy required to light a room have reconfirmed the naturally occurring oxide's ability to reduce energy consumption and counteract global warming.

Strong forces at work in simple table salt

(Phys.org) —Inside the chemical processes to synthesize simple table salt crystals, or NaCl, intense electric fields, typically associated with particle accelerators, occur, according to Pacific Northwest National Laboratory ...

Size matters as nanocrystals go through phases

(Phys.org) —Understanding what happens to a material as it undergoes phase transformations – changes from a solid to a liquid to a gas or a plasma – is of fundamental scientific interest and critical for optimizing ...

Technology for the next generation

Luminescent materials are increasingly starring in many aspects of our daily lives. They can be found in traffic lights, computer screens, smartphones and tablets, Euro banknotes, medical devices, and films for X-rays and ...

Brilliant dye to probe the brain

To obtain very-high-resolution 3D images of the cerebral vascular system, a dye is used that fluoresces in the near infrared and can pass through the skin. The Lem-PHEA chromophore, a new product outclassing the best dyes, ...

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