PhosphorTech receives ISO 9001:2008 certification

PhosphorTech receives ISO 9001:2008 certification as a manufacturer/supplier and distributor of color conversion/correction phosphor products for LEDs used in solid state lighting applications. The ISO certification of our quality management system attests our strong commitment to quality as we move forward with our strong research background towards manufacturing and supplying advanced energy-efficient components to the lighting industry. As a rapidly expanding manufacturing facility. PhosphorTech Corporation is focused on supplying Good parts on time for next generation lighting applications

Radiantflex - PhosphorTech introduces flexible phosphor sheet

PhosphorTech  introduces RadiantFlex^TM, a new revolutionary patent-pending flexible phosphor sheet for solid-state lighting and display applications. This product offers unparalleled flexibility, not just in terms of its physical properties, but also the infinite possibilities and high durability that it offers the LED packaging and luminaire designer.

 

Specifications and Benefits:

• Super-strong and very light-weight with +/-2.5% uniformity in color temperature
• High chemical resistance to oils, mild acids, alkalis, and water
• User-customizable to various sizes and shapes with high curling and wrinkle resistance
• Can be printed on and patterned using conventional digital printers or screen-printing
• Can be custom-produced with different spectral, CCT, and CRI properties
• Costs under $1 per square inch with bulk discounts available
• Works as is or with a variety of adhesives, epoxies, and silicone
• High power density and high temperature operation
- Will operate ~150°C for short periods (hours) and ~100°C for long periods
- Lower temperature limit: -40°C
• Both on-chip or remote phosphor applications possible
• 25-35% higher light output compared to conventional remote phosphor plates      
- More than 10X thinner and 12X lighter
- Virtually no light-piping or edge losses with lambertian emission pattern
- Superior optical properties and low scattering losses

Quantum dots as light harvesting antennae in biological systems

This could be an interesting application of quantum dots in light harvesting. A group of scientists have reported a way to transfer light energy through quantum dots into reaction centers of a biological system.This can potentially lead to more efficient photosynthetic systems. Until recently dendrimers with porphyrins or organometallic complexes had been used in these systems. Quantum dots have a broader light energy absorption window and are expected to have higher photo stability than these materials.

Carbon Nanotubes for RFID

University researchers recently have demonstrated use of carbon nanotubes in making RFIDs which could drastically bring down the cost of rfid manufacturing in the near future.

Over the past few years, silver has been the candidate of choice for RFID tags. But as we all know silver is expensive and there has been efforts to replace this with cheaper materials. Copper is another desired choice though its spontaneous oxidation at nanoscale has been a hindering factor to use copper nanoparticles in these applications. In the past few months, companies such as Applied Nanotech and Novacentrix have come up with technologies to print copper nanoink formulations.

With carbon nanotubes entering the race, it will be interesting to see the developments in bringing down the costs involved in this technology as well as flexible printed electronics in the next few years.

Mapping of quantum dots in atomic scale

Having personally worked in the development of quantum dots for commercial applications for a while, I just thought that the work by Dr. Roy Clarke's group on mapping quantum dots in atomic scale could be a highly interesting approach to develop quantum dots production methodologies with customized properties for unique applications.

Dr. Clarke's group at the University of Michigan seems to be working on mapping quantum dots in atomic scale. They believe that this may be highly relevant in understanding and development of controlled fabrication of quantum dots for desirable properties. Here is the link:

http://news.softpedia.com/newsPDF/Quantum-Dots-Get-First-Atomic-Scale-Map-123111.pdf

Controlling carbon nanotube growth to determine their behaviour as either semi-conductors or metals

Here is an article about a recent finding by scientists at Purdue University and Honda Research Institute that may help scientists in future on how the electronic properties of carbon nanotubes can possibly be determined during their synthesis.

http://www.physorg.com/news173626785.html

By observing the formation of nanotubes through TEM, scientists are trying to establish the relationship between the conditions of nanotube growth (such as the size and shape of the nano-catalyst used and the role of the inert carrier gas) and the conductive properties of the nanotubes.

First real time direct observation of nanoparticles growth in solution

Having personally played around with the syntheses of various types of nanomaterials, I think that the recent development by scientists to directly observe the growth of nanoparticles in solution is indeed fascinating. Visually seeing a video of what is happening during the process, I think will lead to a much better understanding of synthesis of nanomaterials.