1 results about "Molecular orbital" patented technology

The invention relates to a novel organic material. The novel organic material has any structure shown in general formulas I-III. The novel organic material provided by the invention takes peri-xanthenoxanthene as a parent nucleus, and the compound has a relatively wide band gap, a high T1 energy level and a proper highest occupied molecular orbital (HOMO) energy level. The compound has high thermal stability, is not easy to decompose in the sublimation process, has higher glass-transition temperature, and can maintain the phase stability of the formed film. By introducing groups with large steric hindrance, the luminescent material is not easy to crystallize and quench and has good film-forming property. The novel organic material provided by the invention is preferably used as an electrontransport material of an electron transport layer in an organic electroluminescent device.