Featured Research

from universities, journals, and other organizations

White LEDs lighting directly on paper

Date:
July 10, 2012
Source:
Linköping Universitet
Summary:
Imagine a white luminous curtain waving in the breeze. Or wallpaper that lights up your room with perfect white light.  The applications are not very far away. White LEDs, made from zinc oxide and a conducting polymer, can be manufactured directly on paper.

Printed LEDs
Credit: Image courtesy of Linköping Universitet

Imagine a white luminous curtain waving in the breeze. Or wallpaper that lights up your room with perfect white light. The applications are not very far away.White LEDs, made from zinc oxide and a conducting polymer, can be manufactured directly on paper, as shown by Gul Amin in his doctoral thesis at Linköping University.

Imagine a white luminous curtain waving in the breeze. Or wallpaper that lights up your room with perfect white light. These might sound like flights of fancy, but the applications are not very far away.

In his thesis, Gul Amin, who recently received his doctorate at the Physical Electronics and Nanotechnology group, Campus Norrköping, shows how it is possible to grow white LEDs directly on paper and also to print them on wallpaper for example -- this method has a patent pending.

The active components are nanorods of zinc oxide on a thin layer of polydiethylflourene (PFO), a conducting polymer. But the paper has first been coated with a thin, water-repellent, protective and levelling layer of cyclotene, a resin.

"This is the first time anyone has been able to build electronic and photonic inorganic semiconducting components directly on paper using chemical methods," says professor Magnus Willander, who is leading the research.

The article has been published in Wiley's Phys. Status Solidi -- Rapid Research Letters.

In one of the thesis' other articles, published in Springer's Journal of Material Science, Gul Amin also shows how it is possible to grow nanorods on paper, blow them off the surface using ultrasound and collect them in the form of a powder. This powder can then be used to print the nanorods of zinc oxide, and thus LEDs, on paper or plastic in a normal printing press. That method also has patents pending.

Further information: http://liu.diva-portal.org/smash/record.jsf;jsessionid=7a910f9338f2970778e8e1e1a780?searchId=1&pid=diva2:515790


Story Source:

The above story is based on materials provided by Linköping Universitet. Note: Materials may be edited for content and length.


Journal References:

  1. G. Amin, S. Zaman, A. Zainelabdin, O. Nur, M. Willander. ZnO nanorods-polymer hybrid white light emitting diode grown on a disposable paper substrate. physica status solidi (RRL) - Rapid Research Letters, 2011; 5 (2): 71 DOI: 10.1002/pssr.201004446
  2. G. Amin, S. Zaman, A. Zainelabdin, O. Nur, M. Willander. ZnO nanorods-polymer hybrid white light emitting diode grown on a disposable paper substrate. physica status solidi (RRL) - Rapid Research Letters, 2011; 5 (2): 71 DOI: 10.1002/pssr.201004446

Cite This Page:

Linköping Universitet. "White LEDs lighting directly on paper." ScienceDaily. ScienceDaily, 10 July 2012. <www.sciencedaily.com/releases/2012/07/120710093409.htm>.
Linköping Universitet. (2012, July 10). White LEDs lighting directly on paper. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2012/07/120710093409.htm
Linköping Universitet. "White LEDs lighting directly on paper." ScienceDaily. www.sciencedaily.com/releases/2012/07/120710093409.htm (accessed July 30, 2014).

Share This




More Matter & Energy News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) — British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
China's Drone King Says the Revolution Depends on Regulators

China's Drone King Says the Revolution Depends on Regulators

Reuters - Business Video Online (July 30, 2014) — Comparing his current crop of drones to early personal computers, DJI founder Frank Wang says the industry is poised for a growth surge - assuming regulators in more markets clear it for takeoff. Jon Gordon reports. Video provided by Reuters
Powered by NewsLook.com
3Doodler Bring 3-D Printing to Your Hand

3Doodler Bring 3-D Printing to Your Hand

AP (July 30, 2014) — 3-D printing is a cool technology, but it's not exactly a hands-on way to make things. Enter the 3Doodler: the pen that turns you into the 3-D printer. AP technology writer Peter Svensson takes a closer look. (July 30) Video provided by AP
Powered by NewsLook.com
Climate Change Could Cost Billions, According To White House

Climate Change Could Cost Billions, According To White House

Newsy (July 29, 2014) — A report from the White House warns not curbing greenhouse gas emissions could cost the U.S. billions. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins