Friday, 16 October 2015

Electronics that Better Mimic Natural Light Promise More Vivid, Healthy Illumination

Light

Devices for Lighting – Similar to Natural Light


Inspite of technological leaps in up-to-date electronics, the excellence of lighting which they provide still tends to leave much scope for improvement. A joint team led by an associate professor Jian Li, of material sciences and engineering in the Ira A. Fulton Schools of Engineering at Arizona State University, intends to change that.

According to Li, the team is expecting to produce devices for lighting which would be similar to natural light than the earlier technology, allowing user to view things in a healthier, brightly lighted atmosphere. One section of the research with possibility of solutions is aimed on creating advanced organic light emitting diodes known as OLEDs.

The updated OLEDS will not be emitting ultraviolet – UV which will not enable clearer vision but also help in preventing eyestrain which is often the outcome of constant exposure to the UV light that is emitted by the present devices according to Li.

These types of OLEDs would mainly be advantageous to museum, art galleries and other places since the UV lights hinders the human eye in discerning colour variations clearly as well as the texture of objects. Over a period of time, UV light also tends to dull colours of painting, causing gradual decomposition of the paints together with the other materials.

Provision of Grant of $875,000 – 2 Years


Li who is on the faculty of the School for Engineering of Matter, Transport and Energy has informed that the most important developments in the technology would extent to `a big milestone’ in the potential of effectively lighting our world. Operation on OLEDS headed by Li in the past decade had drawn continuous interest from government as well as industry and the most recent aid is a grant with provision of $875,000 over two years from the U.S.Department of Energy.

This would make provision for Li’s lab to enlarge its research with further development in collaboration with Universal Display Corporation, which is a leading developer of electronic display and lighting technologies on organic materials.

Li had informed that the Department of Energy contemplates the progress in OLEDs as a great priority which is the main part of its attempt in helping the world to become more energy efficient, expand into renewable energy resources as well as discover ways of offering more affordable energy.

More Control on Brightness of Lighting …


Next generation of OLED technology can be anticipated in improving the lighting presentation in the various solid state electronics from lighting for streets, parks, sports facilities to cell phones, digital watches, computer screen, television and flexible electronic displays together with home, industrial and commercial lighting.

The advanced OLEDs would permit more control on the brightness of lighting together with provision of more choices in moulding the shapes of the lighting devices, to determine the direction as well as the intensity of light and to regulate the colour of light.

Li’s research team have been working in the development of OLEDs which tend to utilise single emissive material in the creation of a white emission instead of the more difficult structures that depend on the utilisation of a mixture of blue, green and red emissive material which are designed to produce a working stable as well as pure white light than the other lighting technologies.

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