发明名称 |
LIGHT EMITTING DEVICE INCLUDING BLUE EMITTING QUANTUM DOTS AND METHOD |
摘要 |
A method for preparing a light emitting device comprising: disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. A light-emitting device is also disclosed. |
申请公布号 |
US2015028305(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201414323900 |
申请日期 |
2014.07.03 |
申请人 |
QD VISION, INC. |
发明人 |
NIU YUHUA;KAZLAS PETER T. |
分类号 |
H01L51/52;H01L51/56 |
主分类号 |
H01L51/52 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for preparing a light emitting device comprising:
disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. |
地址 |
Lexington MA US |