发明授权
- 专利标题： Organic electroluminescent device having a stabilizing dopant in a hole-transport layer or in an electron-transport layer distant from the emission layer
- 专利标题（中）： 在空穴传输层或远离发射层的电子传输层中具有稳定掺杂剂的有机电致发光器件
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申请号： US10176026申请日： 2002-06-20
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公开(公告)号： US06692846B2公开(公告)日： 2004-02-17
- 发明人: Tukaram K. Hatwar , Ralph H. Young
- 申请人： Tukaram K. Hatwar , Ralph H. Young
- 主分类号： H05B3314
- IPC分类号： H05B3314
摘要：
An organic electroluminescent device includes a substrate; an anode and a cathode positioned relative to the substrate; an emission layer disposed between the anode and the cathode; a hole-transport layer disposed between the anode and the emission layer; and an electron-transport layer disposed between the cathode and the emission layer. The hole-transport layer includes two or more sublayers, one sublayer containing a stabilizing dopant, and the sublayer adjacent to the emission layer containing no stabilizing dopant. Alternatively or in addition, the electron-transport layer includes two or more sublayers, one sublayer containing a stabilizing dopant, and the sublayer adjacent to the emission layer containing no stabilizing dopant. The stabilizing dopant includes rubrene or derivatives thereof.