磷光
咔唑
手性(物理)
发光
热稳定性
荧光粉
材料科学
热的
光化学
光电子学
荧光
化学
物理
光学
有机化学
夸克
量子力学
手征对称破缺
气象学
Nambu–Jona Lasinio模型
作者
Hui Li,Huanhuan Li,Wu Wang,Ye Tao,Shuang Wang,Qingqing Yang,Yunbo Jiang,Chao Zheng,Wei Huang,Runfeng Chen
标识
DOI:10.1002/anie.201915164
摘要
Abstract Purely organic materials showing room temperature phosphorescence (RTP) and ultralong RTP (OURTP) have recently attracted much attention. However, it is challenging to integrate circularly polarized luminescence (CPL) into RTP/OURTP. Here, we show a strategy to realize CPL‐active OURTP (CP‐OURTP) by binding an achiral phosphor group directly to the chiral center of an ester chain. Engineering of this flexible chiral chain enables efficient chirality transfer to carbazole aggregates, resulting in strong CP‐OURTP with a lifetime of over 0.6 s and dissymmetry factor of 2.3×10 −3 after the conformation regulation upon photo‐activation. The realized CP‐OURTP is thus stable at room temperature but can be deactivated quickly at 50 °C to CP‐RTP with high CPL stability during the photo‐activation/thermal‐deactivation cycles. Based on this extraordinary photo/thermal‐responsive and highly reversible CP‐OURTP/RTP, a CPL‐featured lifetime‐encrypted combinational logic device has been successfully established.
科研通智能强力驱动
Strongly Powered by AbleSci AI