Recently in Research Category

Ethylhexyl carbazole + rubrene = Liquid OLED

By Alun Williams - Electronics Weekly.com on August 31, 2009 12:49 PM | No Comments | No TrackBacks
One LED story to note, from our Research.Materials section: Kyushu University reports liquid-OLED

Writes our Technology Editor, Steve Bush:
Scientists at Kyushu University in Japan have reported liquid-OLED in a recent issue of Applied Physics Letters.
In cells sandwiched between sheets of glass - much like an LCD - Denghui Xu and Chihaya Adachi mixed hole carrier ethylhexyl carbazole with rubrene which is both an electron carrier and photoemitter.
Read the full article >>

OLEDs with color temp spectrum of sunlight - Update

By Alun Williams - Electronics Weekly.com on July 22, 2009 1:17 PM | No Comments | No TrackBacks
29jul09sunlight 168.jpgWe briefly flagged, very recently, research carried out at the National Tsing Hua University in Taiwan, into organic LEDs with a full range of colour temperatures. They were capable of copying the full spectrum of sunlight throughout the day (2500 K - 8000 K) - Taiwan researchers create OLEDs with color temp spectrum of sunlight

Our Technology Editor, Steve Bush, got on the case to dig further into this work, and explain more about it. Make sure you read the resulting article - Voltage tunes OLED across all sunlight hues

The article begins:
Continue reading OLEDs with color temp spectrum of sunlight - Update.

Site update: Researchers design power LED retaining efficiency at high current

By Alun Williams - Electronics Weekly.com on January 20, 2009 11:27 AM | No Comments | No TrackBacks
Rensselaer Polytechnic Institute small.jpg
An LED-related article has just been posted on Electronics Weekly:

Rensselaer designs power LED retaining efficiency at high current
The US Rensselaer Polytechnic Institute has designed a power LED that retains efficiency at high current. "The device achieves a notable reduction in efficiency droop, a well-known phenomenon that provokes LEDs to be most efficient when receiving low-density currents, but then to lose efficiency as higher currents are fed into the device," said the university. Read the full story >>

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Author Profiles

Gordon Routledge
Gordon Routledge is one of the original pioneers in LED illumination having worked with LEDs in illumination applications since 1996. Currently VP of Illumination at Dialight, Gordon founded Lumidrives in 2001, having previously been managing director at ACDC Lighting Systems. Gordon has a degree in Electrical & Electronic Engineering from university of Manchester Institute of Science and Technology.

Alistair Winning
Since graduating in Electronic Systems from the University of Paisley in 1997, Alistair has worked in the electronics design publishing industry. He has held various jobs in both journalism and PR/marketing including editor of Electronic Engineering Design and Embedded Systems Engineering and Account Manager at JDK Marcom. He is now working as Editor for Premier Farnell and recently launched its in-house technical magazine, Technology First.

Ian Bryant
ian bryant.jpgIan Bryant is Business Development Manager LED Division at Carclo Technical Plastics. He has worked on and off at Carclo (Formerly Combined Optical Industrial) since leaving school. He has worked through the company from Toolmaking to starting the company on the road of LED optics business some 6-7 years ago, starting with a standard range and more in line with the business of custom optics. In between all this he has worked in engineering and as a works Director for a hydraulics company but kept getting pulled back to the optics industrial. We are able to offer the full solution from idea to parts so have a very good understanding on what is needed. You will see some posts from our design team also under my name.

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This page is an archive of recent entries in the Research category.

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