Evident Technologies to develop advanced quantum-dot based anti-counterfeiting materials

January 17, 2005

Evident Technologies announced that it has received a Phase 1 SBIR (Small Business Innovation Research) grant to develop advanced anti-counterfeiting materials based on its proprietary quantum dot technology.
Work under the project, which is scheduled for completion in July 2005, will combine Evident’s recent advances in quantum dots and micro-resonant structures to create unique spectral barcode tags for high security applications.

Quantum dots are novel semiconductors with unique optical emission characteristics. Microresonant structures are optical devices engineered to allow very specifi c colors to be transmitted. By combining these two technologies, a wide variety of security tags can be created to produce unique spectral-bar codes.

The unique interaction between the two technologies creates security features that are nearly impossible to counterfeit, duplicate or reverse engineer.

"By combining fl uorescing quantum dots with a resonant optical structure, we believe we will signifi cantly advance anti-counterfeiting devices" stated Clint Ballinger, CEO of Evident Technologies. "Our goal under this contract is to produce advanced quantum dots systems compatible with a range of inks, UV curable epoxies, and polymers used on currencies and other documents. This new technology, with its complexity and breadth of application, should provide additional deterrents in personal and industrial security and counter terrorism."


Rank not rated yet
Tags

Relevant PhysicsForums posts

More news stories

'Unzipped' carbon nanotubes could help energize fuel cells, batteries

Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at ...

Nanotechnology / Nanomaterials

created 10 hours ago | popularity 3 / 5 (2) | comments 0 | with audio podcast

Stunning image of smallest possible five-ringed structure

Scientists have created and imaged the smallest possible five-ringed structure – about 100,000 times thinner than a human hair – and you'll probably recognise its shape.

Nanotechnology / Nanophysics

created 4 hours ago | popularity 4.4 / 5 (5) | comments 1 | with audio podcast

Dopant gives graphene solar cells highest efficiency yet

(Phys.org) -- By taking advantage of graphene’s favorable electrical and optical properties, and then adding an organic dopant, researchers have achieved the highest power conversion efficiency yet for ...

Nanotechnology / Nanophysics

created May 21, 2012 | popularity 5 / 5 (10) | comments 14 | with audio podcast feature

In nanorod crystal growth, nanoparticles seen as artificial atoms

In the growth of crystals, do nanoparticles act as "artificial atoms" forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory ...

Nanotechnology / Nanophysics

created May 24, 2012 | popularity 4.8 / 5 (6) | comments 0 | with audio podcast

First direct observation of oriented attachment in nanocrystal growth

Berkeley Lab researchers have reported the first direct observation of nanoparticles undergoing oriented attachment, the critical step in biomineralization and the growth of nanocrystals. A better understanding ...

Nanotechnology / Nanophysics

created May 24, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast


Change in developmental timing was crucial in the evolutionary shift from dinosaurs to birds: study

At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that ...

Computer model used to pinpoint prime materials for efficient carbon capture

When power plants begin capturing their carbon emissions to reduce greenhouse gases – and to most in the electric power industry, it's a question of when, not if – it will be an expensive undertaking.

T cells 'hunt' parasites like animal predators seek prey, study shows

By pairing an intimate knowledge of immune-system function with a deep understanding of statistical physics, a cross-disciplinary team at the University of Pennsylvania has arrived at a surprising finding: T cells use a movement ...

Land and sea species differ in climate change response: study

(Phys.org) -- Marine and terrestrial species will likely differ in their responses to climate warming, new research by Simon Fraser University and Australia’s University of Tasmania has found.

Yale study concludes public apathy over climate change unrelated to science literacy

Are members of the public divided about climate change because they don't understand the science behind it? If Americans knew more basic science and were more proficient in technical reasoning, would public consensus match ...

10 million years needed to recover from mass extinction

It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed.