Polymer and small molecule based hybrid light source

Patent · 16 March 2010

OSTI ID:1014482

Choong, Vi-En ^[1]; Choulis, Stelios ^[2]; Krummacher, Benjamin Claus ^[3]; Mathai, Mathew ^[4]; So, Franky ^[5]

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1. Carlsbad, CA
2. Nuremberg, DE
3. Regensburg, DE
4. Monroeville, PA
5. Gainesville, FL

An organic electroluminescent device, includes: a substrate; a hole-injecting electrode (anode) coated over the substrate; a hole injection layer coated over the anode; a hole transporting layer coated over the hole injection layer; a polymer based light emitting layer, coated over the hole transporting layer; a small molecule based light emitting layer, thermally evaporated over the polymer based light emitting layer; and an electron-injecting electrode (cathode) deposited over the electroluminescent polymer layer.

• Research Organization: Osram Opto Semiconductors GmbH (Regensburg, DE)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-04NT41947
• Assignee: Osram Opto Semiconductors GmbH (Regensburg, DE)
• Patent Number(s): 7,679,282
• Application Number: US Patent Application 11/294,904
• OSTI ID: 1014482
• Country of Publication: United States
• Language: English