A Strategy of "Self-Isolated Enhanced Emission" to Achieve Highly Emissive Dual-State Emission for Organic Luminescent Materials
A Strategy of "Self-Isolated Enhanced Emission" to Achieve Highly Emissive Dual-State Emission for Organic Luminescent Materials
复制标题
“自隔离增强发射”策略实现有机发光材料高发射双态发射
DOI：
10.1002/chem.201802201
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Meng Lingjie
中科院分区：
文献类型：
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作者：
Xu Yanzi;Ren Lin;Dang Dongfeng;Zhi Ying;Wang Xiaochi;Meng Lingjie
目前，常用的有机发光材料（OLM）在聚集固态下的发光性能通常比溶解良好的溶液态下的发光性能差，这使得实现高发射率的双态发光成为一个艰巨的目标。为了克服这一限制，本文提出了一种通过柔性烷基链来抑制固体中发射猝灭的π-π堆积的“自隔离增强发射”(SIEE)策略，并且基于该指导方针，所构建的SIEE实现了显着的发射效率，溶液中的光致发光量子产率高达99.72%，固态中的光致发光量子产率高达77.46%。 DBBT-C8，随后成功用于固态显示器和数据加密。
Currently, the commonly developed organic luminescent materials (OLMs) usually exhibit poor luminescent performance in aggregated solid states compared with their well‐dissolved solution states, making it a tough goal to achieve the highly emissive dual‐state emission. To overcome this limitation, a “self‐isolated enhanced emission” (SIEE) strategy through flexible alkyl chains to suppress the emission‐quenched π–π stacking in solids is proposed here and, based on this guideline, remarkable emission efficiency with photoluminescence quantum yields up to 99.72 % in solution and 77.46 % in the solid state are achieved for the SIEE constructed DBBT‐C8, which is then successfully used in solid‐state displays and data encryption.