Contact Lens Video Display Electronics Now Transparent
Transparent and stretchable electrodes made of graphene and silver nanowires that are effective conductors have been developed by researchers at South Korea’s Ulsan National Institute of Science and Technology (UNIST).
The scientists were able to embed the new material as an inorganic light-emitting diode (ILDED) into a soft contact lens which was worn seemingly without irritation by a live rabbit for five hours.
(Flexible transparent electrodes for contact lenses)
Transparent electrodes that can remain electrically conductive and stable under large mechanical deformations are highly desirable for applications in flexible and wearable electronics. This paper describes a comprehensive study of the electrical, optical, and mechanical properties of hybrid nanostructures based on two-dimensional graphene and networks of one-dimensional metal nanowires, and their use as transparent and stretchable electrodes. Low sheet resistance (33 Ω/sq) with high transmittance (94% in visible range), robust stability against electric breakdown and oxidation, and superb flexibility (27% in bending strain) and stretchability (100% in tensile strain) are observed, and these multiple functionalities of the hybrid structures suggest a future promise for next generation electronics.
The use of hybrid electrodes to fabricate oxide semiconductor transistors and single-pixel displays integrated on wearable soft contact lenses with in vivo tests are demonstrated.
(Contact lens with flexible electrode)
Science fiction fans have already had an eyeful of this technology; take a look at the DreamTime Scleral Contact Lenses from Larry Niven and Steve Barnes's 1992 novel California Voodoo Game and more recently the smart contact lens from Vernor Vinge's 2001 story Fast Times at Fairmont High and of course his more recent novel Rainbows End.
From High-Performance, Transparent, and Stretchable Electrodes Using Graphene–Metal Nanowire Hybrid Structures via MedGadget.
Scroll down for more stories in the same category. (Story submitted 6/1/2013)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 2 )
Related News Stories -
A New Way To Run Into Things
'He made an adjustment, pointed the tube at the wall beside Etzwane, and projected a cone of light.' - Jack Vance, 1971.
Unfurl The Future! Huawei Mate X versus Galaxy Fold
'A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid.' - William Gibson, 1986.
North Focals Smart Glasses Provide Augmented Reality In Style
'The world ... is drenched in unfamiliar information all the way to the horizon.' - Charles Stross, 2007.
Do You Still Want A Folding Screen Phone?
'A paper thin polycarbon screen unfurled...' - William Gibson, 1986.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Datagrid Model Generation Perfect For Eternal Cities Of Science Fiction
'... there was enough flexibility to allow for wide variation.
Kazahk Ironist Protester Arrested For Blank Sign Protest
'...a man carried a white rectangular sign, blank on both sides.'
Bitcoin Surges Again, To $7,000
'... electronic, private cash, unbacked by any government, untraceable, completely anonymous.'
China Develops Taste Testing Robots
'Install taste buds in the end of one tentacle...'
North Sea Stone Age Reconstruction And Philip K Dick
'Your Dip digs back into antiquity. Rome. Greece. Dust and old volumes.'
Tesla Robotaxis Will Automatically Recharge Themselves
'Then it appeared to make up its mind, and trundled over to a wall socket...'
New Lifelike Material Powered By Artificial Metabolism
'... The biological robots were not living creatures.'
Husqvarna Automower 435X AWD
'Gramp Stevens sat in a lawn chair, watching the mower at work...'
Elon Musk Foretells Tesla Sans Steering Wheel
'How about the steering wheel... I don't need one.'
Adversarial Patches Trick Computer Vision
'The surveillance cameras can all see it, but then they forget they’ve seen it.'
Amazon Warehouse Computer Can Fire People Now
'The system has already fired five people...'
BrainEx Restores Some Activity To Severed Pig Head
'... they placed the brain in a special solution, having all the properties of Nursing the brain cells.'
Yes, But Do Astrobees Have Lasers For Lightsaber Training?
'... Ancient weapons are no match for a good blaster at your side, kid.'
'Young Razorbacks Before Their Katanas Grow In'
'Twin robotic arms with gleaming three-foot sword blades unfolded from the forward hydraulic assemblies...'
A New Way To Run Into Things
'He made an adjustment, pointed the tube at the wall beside Etzwane, and projected a cone of light.'
'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...'
More SF in the News Stories
More Beyond Technovelgy science news stories