- 专利标题： USE OF SINGLET-TRIPLET GAP HOSTS FOR INCREASING STABILITY OF BLUE PHOSPHORESCENT EMISSION
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申请号： US18307824申请日： 2023-04-27
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公开(公告)号： US20240099039A1公开(公告)日： 2024-03-21
- 发明人: Nicholas J. THOMPSON , Jerald FELDMAN , Julia J. BROWN
- 申请人： UNIVERSAL DISPLAY CORPORATION
- 申请人地址： US NJ Ewing
- 专利权人： UNIVERSAL DISPLAY CORPORATION
- 当前专利权人： UNIVERSAL DISPLAY CORPORATION
- 当前专利权人地址： US NJ Ewing
- 主分类号： H10K50/11
- IPC分类号： H10K50/11 ; C09K11/06 ; H10K85/30 ; H10K85/60
摘要：
Arrangements for phosphorescent blue emissive materials, layers, and devices are provided. The arrangements include a host having first a triplet energy level of at least 2.8 eV and an absolute difference of not more than 0.3 eV between the first singlet and triplet energy levels, and an emitter that includes an emissive transition metal complex and a first triplet energy level of at least 2.7 eV.
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