Cheaper OLEDs now a possibility

A new driving method developed by the University of Florida has the potential to make large OLED panels cheaper.

Professor Andrew Rinzler and his team stacked the components on top of one another instead of putting them side by side to make transistors. A thin film of Aluminum Oxide was deposited on a glass substrate to make the drain electrode.

A layer of organic semiconducting molecule was added as a channel. A further diluted layer of carbon nanotubes was added to become the source electrode. Finally a gold layer was added as the electrical contact.

As a result, very thin films were formed that gave great performance without needing any HD lithography technique.

Professor Rinzler is working further to make manufacturing costs cheaper and simpler by making a simpler OLED display architecture. This method can be used in flexible OLEDs that have still not been produced but there looks a possibility now.