Researchers developed new pure-organic OLED materials, can help make OLEDs cheaper

Researchers from the University of Michigan led by Jinsang Kim developed new pure-organic phosphorescence materials made primarily of inexpensive carbon, oxygen, chlorine and bromine and are "easy" to synthesize. This is the first time anyone created an phosphorescence OLED that does not contain any metals. These materials could be used to create cheaper OLEDs (as OLEDs today still need a little bit of expensive metals in them). The new materials exhibit quantum yields of 55%.

The light in those OLEDs comes from oxygen and carbon molecules called "aromatic carbonyls". These materials form strong halogen bonds with halogens in the crystal to pack the molecules tightly. This arrangement suppresses vibration and heat energy losses as the excited electrons fall back to the ground state, leading to strong phosphorescence.

A new study finds that LEDs contain unsafe level of carcinogenic toxins

A new study (by UC Irvine’s Department of Population Health & Disease Prevention) discovered that LED light bulbs (inorganic-LEDs) contain unsafe levels of carcinogenic toxins. While LEDs do not contain mercury (like in CFL lamps), they do contain lead, arsenic and other unsafe chemicals. This means that it's dangerous to break a LED bulb, and just extrating those toxins from the earth is a destructive process.

The research found that large LEDs contain more toxins than small LEDs - but even low intensity red LED bulbs contains eight times the level of lead allowed under California state law. They state that while LEDs are great in power efficiency - we still need to find a really safe new light source. Perhaps OLEDs will be the answer?

OLED Q&A with Myrddin Jones, CEO, OLED-T

Ron Mertens from recently had the opportunity to interview Myrddin Jones, OLED-T's new CEO.

OLED-T is engaged with research, development and commercialization of a pioneering class of OLED materials, called ELAMATES®. For more information on OLED-T, check out the corporate background and technological background documents they sent us.

Q: Myrddin, First of all, thank you for accepting to do this interview session with us... Now, obviously there are many OLED IP and material companies out there. What makes OLED-T unique? What are the advantages of your materials and IP?

OLED-T lead electron transporter material can replace existing standard materials using the same production process and offer advantages in terms of efficiency, voltage, colour and lifetime as a direct result even with no other changes in materials or structure. In addition, OLED-T has prototype display production in-house allowing optimum structures to be developed and proposed to customers. See attached technology overview.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters