Effects of spectral quality, intensity of LEDs

In horticultural operations, light-emitting diode (LED) lamps are becoming recognized as an important advance in artificial lighting. Among other benefits, LED lighting systems can offer durability, long operating lifetimes, ...

How copper makes organic light-emitting diodes more efficient

Use of copper as a fluorescent material allows for the manufacture of inexpensive and environmentally compatible organic light-emitting diodes (OLEDs). Thermally activated delayed fuorescence (TADF) ensures high light yield. ...

Smarter window materials can control light and energy

Researchers in the Cockrell School of Engineering at The University of Texas at Austin are one step closer to delivering smart windows with a new level of energy efficiency, engineering materials that allow windows to reveal ...

Minding the gap: City bats won't fly through bright spaces

Researchers at the University of Birmingham have discovered that bats living in a city are less likely to move from tree to tree in brightly lit areas, according to research published online today (5th June 2015) in the journal ...

Switching on a dime: How plants function in shade and light

Photosynthesis is the process by which plants convert energy from the sunlight into chemical energy in the form of sugars. These sugars are used by plants to grow and function, as well as food for animals and humans that ...

New system to optimize public lighting power consumption

In order to meet the efficiency requirements of the latest public lighting regulations, researchers from the School of Industrial Engineers of Universidad Politécnica de Madrid (UPM), in collaboration with the Universidad ...

Self-cooling solar cells boost power, last longer

Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells—keeping them cool, even in the blistering heat of the noonday Sun.

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