| 发明名称 | OLED stability via doped hole transport layer | ||
| 摘要 | An organic light emitting device is provided. The device includes an anode and a cathode. A first organic layer is disposed between the anode and the cathode. The first organic layer is an emissive layer that includes a first organic emitting material. The device also includes a second organic layer disposed between the anode and the first organic layer. The second organic layer is a non-emissive layer. The second organic layer includes an organic small molecule hole transport material having a concentration of 50 to 99 wt %, and an organic small molecule electron transport material having a concentration of 0.1 to 5 wt %. Other materials may be present. | ||
| 申请公布号 | US8778511(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US200913139227 | 申请日期 | 2009.10.01 |
| 申请人 | Universal Display Corporation | 发明人 | Adamovich Vadim;D'Andrade Brian;Weaver Michael S. |
| 分类号 | H01L51/54 | 主分类号 | H01L51/54 |
| 代理机构 | Sterne, Kessler, Goldstein & Fox P.L.L.C. | 代理人 | Sterne, Kessler, Goldstein & Fox P.L.L.C. |
| 主权项 | 1. An organic light emitting device, comprising: (a) an anode (b) a cathode (c) a first organic layer disposed between the anode and the cathode, the first organic layer being an emissive layer comprising a first organic emitting material; (d) a second organic layer disposed between the anode and the first organic layer and in direct contact with the first organic layer, the second organic layer being a non-emissive layer, the second organic layer comprising: (i) an organic small molecule hole transport material having a concentration of 50 to 99 wt %;(ii) an organic small molecule electron transport material having a concentration of 0.1 to 5 wt %; wherein the concentration of the 0.1 to 5 wt % of the organic small molecule electron transport material occurs at a position in the second organic layer immediately on the anode side of the emissive layer. | ||
| 地址 | Ewing NJ US | ||