The Deuteration of OLEDs

Isowater, a vendor of deuterium oxide (D2O), claims to have achieved a major technological breakthrough with its first production of market-grade D2O on its way to producing sustainable long-term commercial supplies of deuterium oxide.

Significant lifetime enhancement, up to an eight-fold, has been demonstrated in blue OLEDs through the deuteration of host and hole transport materials (Source: American Chemical Society)

The isotope effect (IE) describes the mechanisms and role of hole/electron transport behaviors of semiconductors. A recent research report looked at subtle isotope substitution on fluorophores , their influence on luminescence efficiency and the operational lifetime of OLEDs. The study found that the deuterium substitution led enhancing the luminescence efficiency of the deuterated materials.

Isowater produced the deuterium oxide using a proprietary process technology developed to enrich natural background concentrations or low grade D2O to a targeted deuterium concentration that meets the requirements of many applications. Work is continuing to optimize the system to ensure the company can finalize a commercial product that is consistently within control limits.

“This milestone is the culmination of a multi-year-long research and development program to reliably produce commercial-grade deuterium oxide for our customers,” said Andrew Stuart, Isowater Chairman and CEO. “This advances us on a pathway to become a producer that can meet the growing global need for a reliable and secure supply of deuterium oxide.”