Boron‐, Sulfur‐ and Nitrogen‐Doped Tridecacyclic Aromatic Emitters with Multiple Resonance Effect for Narrowband Red Emission
Boron‐, Sulfur‐ and Nitrogen‐Doped Tridecacyclic Aromatic Emitters with Multiple Resonance Effect for Narrowband Red Emission
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具有多重共振效应的硼、硫和氮掺杂十三环芳香族发射体用于窄带红光发射
DOI：
10.1002/cjoc.202200356
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发表时间：
2022
影响因子：
5.4
通讯作者：
Lixiang Wang
中科院分区：
文献类型：
--
作者：
Yinuo Wang;Kai;Fan Chen;Xingdong Wang;Qingqing Yang;Shumeng Wang;Shiyang Shao;Lixiang Wang
两种新型的硼（B）、硫（S）、氮（N）掺杂的多环芳烃多共振发光体（DBNS和DBNS-tBu）通过在十三环芳族骨架内的中心苯环的对位嵌入两对S和N原子以及两个B原子以形成供体-π-供体（D-π-D）和受体-π-受体（A-π-A）结构而设计和合成用于窄带红光发射，其不仅在641 nm处具有小的半峰全宽（39 nm），而且联合收割机高的光致发光量子效率（85%）和快速的反向系间穿越（kRISC= 2.2 × 105 s-1），通过溶液过程产生色坐标为（0.65，0.34）的红色电致发光，最大外量子效率为7.8%。
Comprehensive SummaryTwo novel boron (B), sulfur (S), nitrogen (N)‐doped polycyclic aromatic hydrocarbon multiple resonance emitters (DBNS and DBNS‐tBu) are designed and synthesized for narrowband red emission by embedding two pairs of S and N atoms and two B atoms inpara‐positions of central benzene rings within a tridecacyclic aromatic skeleton to form donor‐π‐donor (D‐π‐D) and acceptor‐π‐acceptor (A‐π‐A) structures, which not only exhibit emission maximum at 641 nm with small full width at half maximum of 39 nm, but also combine high photoluminescent quantum efficiency (85%) and rapid reverse intersystem crossing (kRISC= 2.2 × 105s−1), giving rise to red electroluminescence with color coordinates of (0.65, 0.34) and maximum external quantum efficiency of 7.8% via solution process.