| abstract |
The invention discloses a bipolar small molecule luminescent material with a diphenanthrene-2,8-indene fluorene unit as the core, a preparation method and an application thereof. The present invention takes bisphenanthrene-2,8-indene fluorene as the core, and connects the electron donor unit and the electron acceptor unit on both sides of the bisphenanthrene-2,8-indene fluorene unit through a Suzuki coupling reaction to obtain the following Bipolar small molecule luminescent material with diphenanthrene-2,8-indene fluorene unit as core. The synthesis method of the invention is simple, easy to purify and beneficial to industrial application. The bipolar small-molecule luminescent material has good solubility, film-forming property and thin-film morphological stability, and the light-emitting layer based on the bipolar small-molecule luminescent material does not need annealing treatment when preparing a device, so that the preparation process is simple. |