发明名称 |
OLED HAVING NON-HOLE BLOCKING BUFFER LAYER |
摘要 |
An organic electroluminescent device includes an anode; a hole-transporting layer disposed over the anode; a light-emitting layer disposed over the hole-transporting layer for producing blue light in response to hole-electron recombination, wherein the light emitting layer includes at least one host material and at least one dopant material; a non-hole-blocking buffer layer formed in contact with the light-emitting layer, wherein the non-hole-blocking buffer layer has substantially the same ionization potential and the same electron affinity as those of one of the host materials in the light-emitting layer; an electron-transporting layer disposed over the non-hole-blocking buffer layer; and a cathode disposed over the electron-transporting layer. |
申请公布号 |
WO2005038941(A3) |
申请公布日期 |
2005.06.16 |
申请号 |
WO2004US29593 |
申请日期 |
2004.09.13 |
申请人 |
EASTMAN KODAK COMPANY;LIAO, LIANG-SHENG;KLUBEK, KEVIN, PAUL |
发明人 |
LIAO, LIANG-SHENG;KLUBEK, KEVIN, PAUL |
分类号 |
H01L21/312;H01L51/00;H01L51/50 |
主分类号 |
H01L21/312 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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