Modified perovskite quantum dot material, fabricating method thereof, and display device
申请人:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
公开号:US11332661B2
公开(公告)日:2022-05-17
A modified perovskite quantum dot material, a fabricating method thereof, and a display device are provided. Hydroxyl-modified perovskite quantum dots are obtained by adding an excess amount of hydroxyl-containing surface ligands to a solution of synthesized perovskite quantum dots. After high-speed centrifugation, the obtained perovskite quantum dots are redispersed into a non-polar alkyl solvent to form a solution. Further, an excess amount of ethyl orthosilicate is added to the solution, and after exposing the solution for a long period of time, the ethyl orthosilicate is hydrolyzed to form a triethoxysilane group. After centrifugation, modified perovskite quantum dots wrapped by the triethoxysilane groups are obtained, which effectively improves stability of the perovskite quantum dots.
本发明提供了一种改性过氧化物量子点材料、其制造方法和一种显示装置。羟基修饰的包晶量子点是通过在合成的包晶量子点溶液中加入过量的含羟基的表面配体而获得的。高速离心后,将得到的包晶量子点重新分散到非极性烷基溶剂中,形成溶液。然后,在溶液中加入过量的原硅酸乙酯,在长时间暴露溶液后,原硅酸乙酯水解形成三乙氧基硅烷基团。离心后,得到被三乙氧基硅烷基团包裹的改性包晶量子点,从而有效提高了包晶量子点的稳定性。