摘要 |
<p>There is provided an organic electronic device including an anode, a hole transport layer, an emissive layer, an electron transport layer, and a cathode. The emissive layer includes at least one first electroluminescent material and the electron transport layer includes at least one electron transport material and at least one second electroluminescent material. The second electroluminescent material has a concentration that is greater adjacent the emissive layer. The device has white light emission.</p> |