公开(公告)号：US20190074445A1

公开(公告)日：2019-03-07

申请号：US16119308

申请日：2018-08-31

申请人： Samsung Electronics Co., Ltd. ,  Ewha University - Industry Collaboration Foundation

发明人： Sooghang IHN ,  Youngmin YOU ,  Sonam KIM ,  Sinheui KIM ,  Seungyeon YI ,  Sunghan KIM ,  Changho NOH ,  Soohwan SUL ,  Myungsun SIM ,  Hasup LEE

IPC分类号： H01L51/00 ,  C07D311/10 ,  C07C49/784 ,  C07C49/786 ,  C07C49/683

摘要： An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer and a fluorescent compound, wherein the fluorescent compound comprises a 3n-π*-to-1π-π* energy transition from a 3n-π* excited state to a 1π-π* excited state, an energy level in a 1n-π* excited state of the fluorescent compound is greater than an energy level in the 1π-π* excited state of the fluorescent compound, the fluorescent compound emits a fluorescent light by radiative energy transition of an exciton in the 1π-π* excited state to a ground state, and the energy level in the 1n-π* excited state, the energy level in the 1π-π* excited state, and the energy level in the 3n-π* excited state are each independently calculated by using a time dependent-Density Functional Theory method.