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Materials Science Jan 20, 2020

Unique organic light-emitting molecular emitters

A team including researchers from Osaka University has produced a new molecular emitter for organic light-emitting diodes (OLEDs). Using rational chemical design with U-shaped synthetic building blocks, the scientists were ...

Materials Science Jan 15, 2020

Hot OLEDs can 'switch back'

It is well-known that LEDs and transistors should not be connected in parallel as slight differences in resistance can lead to imbalanced current flow. This effect gets even stronger if the devices heat up as their resistance ...

Materials Science Dec 13, 2019

Simultaneous emission of orthogonal handedness in circular polarization

Control of the polarization of light is a key feature for displays, optical data storage, optical quantum information, and chirality sensing. In particular, the direct emission of circularly polarized (CP) light has attracted ...

Materials Science Dec 6, 2019

Exciplex emission observed over much longer distances than previously thought possible

Light-emitting exciplex complexes can form over far greater distances than ever suspected, a RIKEN-led team has shown. This discovery could lead to highly sensitive sensors and photodetectors.

General Physics Dec 2, 2019

This 'fix' for economic theory changes everything from gambles to Ponzi schemes

Whether we decide to take out that insurance policy, buy Bitcoin, or switch jobs, many economic decisions boil down to a fundamental gamble about how to maximize our wealth over time. How we understand these decisions is ...

Materials Science Nov 25, 2019

pinMOS: Novel memory device can be written on and read out optically or electrically

Scientists at the Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and the Center for Advancing Electronics Dresden (cfaed) at TU Dresden have developed a novel storage technology based on the combination ...

Materials Science Nov 8, 2019

Chemist creates molecular 'merry-go-round' complex for future OLED displays

A RUDN University chemist has synthesized fluorescent compounds with "merry-go-round" molecules that can be used to create economical displays with organic LEDs (OLEDs). The nucleus of these molecules is a triangle of silver ...

Analytical Chemistry Nov 4, 2019

Rapid test to ensure high milk quality

Standards of food safety and food quality have never been higher in Germany and throughout the European Union. This is especially true in the dairy industry. Yet despite such high standards, traces of impurities, pesticides ...

Materials Science Oct 8, 2019

A window for trap-free charge transport in organic semiconductors

Organic semiconductors, a class of carbon-based materials with optical and electronic properties, are now commonly used to fabricate a variety of devices, including solar cells, light-emitting diodes and field-effect transistors. ...

Environment Sep 25, 2019

Swedish climate activist Thunberg wins 'Alternative Nobel'

Swedish climate activist Greta Thunberg is among four people named Wednesday as the winners of a Right Livelihood Award, also known as the "Alternative Nobel."

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