Unity fluorescent carbene-gold(I)-acetylide complexes with two-photon absorption and energy-efficient blue FOLEDs

被引：1

作者：

Brannan, Alexander C. ^{[1
]}

Cho, Hwan-Hee ^{[2
]}

Daniel, Jonathan ^{[3
]}

Harvey, Amelia J. ^{[1
]}

Smith, Charles T. ^{[4
,5
]}

Le Phuoc, Nguyen ^{[6
]}

Linnolahti, Mikko ^{[6
]}

Blanchard-Desce, Mireille ^{[3
]}

Greenham, Neil C. ^{[2
]}

Romanov, Alexander S. ^{[1
]}

机构：

[1] Univ Manchester, Dept Chem, Oxford Rd, Manchester M13 9PL, England

[2] Univ Cambridge, Dept Phys, Cavendish Lab, Cambridge CB3 0HF, England

[3] Univ Bordeaux, Inst Sci Mol ISM, Inst Polytech Bordeaux, CNRS,UMR5255, Bat A12,351 Cours Liberat, F-33405 Talence, France

[4] Univ Manchester, Dept Phys & Astron, Oxford Rd, Manchester M13 9PL, Lancs, England

[5] Univ Manchester, Photon Sci Inst, Oxford Rd, Manchester M13 9PL, England

[6] Univ Eastern Finland, Dept Chem, FI-80101 Joensuu, Finland

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2024年 / 12卷 / 34期

基金：

英国工程与自然科学研究理事会; 芬兰科学院;

关键词：

NONLINEAR-OPTICAL PROPERTIES; CUBIC HYPERPOLARIZABILITIES; ORGANOMETALLIC COMPLEXES; ABSORBING MATERIALS; DATA STORAGE; CHROMOPHORES; GOLD; DIPOLAR; HOST;

D O I：

10.1039/d4tc02845g

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two fluorescent organometallic "carbene-gold(I)-acetylide" (CMAc) complexes based on bicyclic alkyl(amino) carbene (BIC), 4-ethynyl-2,1,3-benzothiadiazole (Au1) and 4,7-diethynyl-2,1,3-benzothiadiazole (Au2) have been synthesized and characterized. Compounds Au1 and Au2 exhibit blue to yellow fluorescence with up to unity fluorescence quantum yields and radiative rates exceeding 10(8) s(-1). The dipolar Au1 complex exhibits a low two photon absorption cross-section (2PA sigma(2)) of 0.8 GM, whereas the quadrupolar Au2 complex shows a high 2PA sigma(2) value of 90 GM. A fluorescent CMAc organic light emitting diode (OLED) emits blue electroluminescence with up to 4.7% external quantum efficiency.

引用

页码：13545 / 13554

页数：10

共 5 条

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[4] Studies of Two-Photon Property of Intensely Luminescent Alkynyl-Phosphine Gold(I)-Copper(I) Complexes
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