发光学报2025，Vol.46Issue(11)：2036-2045,10.DOI:10.37188/CJL.20250165
基于四齿铂配位构型的圆偏振发光材料构筑及其深红光/近红外电致发光研究
Tetradentate Pt(Ⅱ)-based Circularly Polarized Luminescent Materials for Deep Red/Near-infrared Electroluminescence
摘要
Abstract
In this work,spiro-chiral electroluminescent emitter(Pt-TPA-δ-Cbl)was constructed via a steric hin-drance strategy at the terminal acceptor of a tetradentate Pt(Ⅱ)coordination system.Optically pure enantiomers(P-Pt-TPA-δ-Cbl and M-Pt-TPA-δ-Cbl)were successfully isolated through chiral chromatographic separation.The mo-lecular structures,photophysical properties,and device performance were systematically investigated using combined theoretical and experimental approaches,elucidating structure-property relationships.The complexes exhibit excel-lent thermal stability(decomposition temperature＞450℃)and intense deep red/near-infrared(DR/NIR)emission(λem=698 nm).Remarkably,the chiral enantiomers demonstrate strong circularly polarized photoluminescence(CPL)in both solution and thin-film states,with photoluminescence dissymmetry factors(|gPL|)reaching 10-3.Vacu-um-deposited devices achieve NIR electroluminescence at 685 nm,delivering a maximum external quantum efficien-cy(EQEmax)of over 17.6％,ranking among the highest reported values for Pt(Ⅱ)-based deep-red/NIR electrolumi-nescent systems.The solution-processed circularly polarized phosphorescent organic light emitting diodes(CP-OLEDs)exhibit an electroluminescence dissymmetry factor(|gEL|)of～10-4.This work provides a strategic design paradigm and theoretical foundation for developing high-performance deep-red/NIR luminescent materials and chiral electroluminescent devices.关键词
铂配合物/圆偏振发光/螺手性/深红光/近红外Key words
Pt complexes/circularly polarized luminescence/spiro-chirality/deep-red to near-infrared(NIR)分类
数理科学引用本文复制引用
张友明,邓益佳,王练,黄曼莉,华涛,李能泉,黄宏,陈展翔,杨楚罗..基于四齿铂配位构型的圆偏振发光材料构筑及其深红光/近红外电致发光研究[J].发光学报,2025,46(11):2036-2045,10.基金项目
广东省基础与应用基础研究基金(2025A1515010054) （2025A1515010054）
深圳市新型信息显示与存储材料重点实验室(ZDSYS-20210623091813040) （ZDSYS-20210623091813040）
深圳市高等院校稳定支持计划(20231127120511001) （20231127120511001）
深圳信息职业技术学院博硕士教师科研启动项目(科技)(SZIIT2024KJ020) （科技）
广东省普通高校创新团队项目(2024KCXTD064)Supported by Guangdong Basic and Applied Basic Research Foundation(20205A1515010054) （2024KCXTD064）
Shenzhen Science and Tech-nology Program(ZDSYS20210623091813040,20231127120511001) （ZDSYS20210623091813040,20231127120511001）
Shenzhen Institute of Information Technology Research Initiation Project for Master's/Doctoral Faculty(Science & Technology)(SZIIT2024KJ020) （Science & Technology）
The Scientific Research Projects of University of Guangdong Provincial Education Office(2024KCXTD064) （2024KCXTD064）
