Novel Series of Mononuclear Aluminum Complexes for High‐Performance Solution‐Processed Organic Light‐Emitting Devices

Nakao, Kohei; Sasabe, Hiroyuki; Shibuya, Yusuke; Matsunaga, Amane; Katagiri, Hiroshi; Kido, Junji

doi:10.1002/anie.202014941

Cited by 14 publications

(11 citation statements)

References 38 publications

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“…Recently, Kido and coagent depicted an unusual series of highly luminescent TADF mononuclear Al complexes through coordinating with phenylacridine-modified asymmetric acetylacetonate-type ligands. [39] The design strategy is based on two expectations. For the one hand, mononuclear metal complex may cause higher PLQY and flexibility.…”

Section: Other Non-precious Metal Complexesmentioning

confidence: 99%

“…While the development of Al complexes is limited by the low EQE. Recently, Kido and coagent depicted an unusual series of highly luminescent TADF mononuclear Al complexes through coordinating with phenylacridine‐modified asymmetric acetylacetonate‐type ligands [39] . The design strategy is based on two expectations.…”

Section: Non‐traditional Phosphorescent Complexesmentioning

confidence: 99%

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Diversity of Luminescent Metal Complexes in OLEDs: Beyond Traditional Precious Metals

Xie

2021

Chemistry An Asian Journal

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Organic light-emitting diodes (OLED) have attracted increasing attention due to their excellent properties, such as self-luminosity, high color gamut and flexibility, and potential applications in display, wearable devices and lighting. The emitters are the most important composition in OLEDs, mainly classified into fluorescent compounds (first generation), metal phosphorescent complexes (second generation), and thermally activated delayed fluorescence (TADF) materi-als (third generation). In this review, we summarize the advances of novel emitters of organic metal complexes in the last decade, focusing on coinage metals (Cu, Ag, and Au) and non-precious metals (Al, Zn, W, and alkali metal). Also, the design strategy of d 10 and Au(III) complexes was discussed. We aim to provide guidance for exploring efficient metal complexes beyond traditional phosphorescent complexes. Non-traditional phosphorescent complexes2.1. d 10 complexes (Cu(I), Ag(I), Au(I))Cu(I), Ag(I), Au(I) complexes with closed shell d 10 configuration have been researched extensively for the most promising alternative emitters to traditional precious metal complexes in OLEDs. [13] In this section, some typical research progress in the [a] X.

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Section: Other Non-precious Metal Complexesmentioning

confidence: 99%

Section: Non‐traditional Phosphorescent Complexesmentioning

confidence: 99%

Diversity of Luminescent Metal Complexes in OLEDs: Beyond Traditional Precious Metals

Xie

2021

Chemistry An Asian Journal

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“…These complexes exhibit a high PLQY in the solid state. 264 Solution treatment of OLEDs using these Al(III) complexes showed remarkable properties at 100 cd m À2 with an EQE (external quantum efficiency) of 17.5%. These are the best properties recorded so far for light metal-based TADF OLEDs.…”

Section: Organic-inorganic Hybrid System: Tadfmentioning

confidence: 97%

Recent advances in the design of afterglow materials: mechanisms, structural regulation strategies and applications

Yang,

Waterhouse,

et al. 2023

Chem. Soc. Rev.

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“…In addition, as mentioned above, a vacuum-deposited OLED always provides a better device performance than that made from solution processing. However, In 2021, Nakao et al reported two mononuclear Al(III) complexes that coordinate with phenylacridine-modified asymmetric acetylacetonate-type ligands [213]. The chemical structure and OLED performance of these complexes are described in figure 31(b).…”

Section: Metal-complex Tadf Emittersmentioning

confidence: 99%

Thermally activated delayed fluorescence materials for organic light-emitting diodes

Xie

et al. 2023

Rep. Prog. Phys.

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Recently, remarkable advances in thermally activated delayed fluorescence (TADF) materials have attracted dramatic attention due to 100% exciton utilization efficiency in organic light emitting diode (OLED). Although the commercialization of TADF materials is at an early stage, they exhibit enormous potential for next generation OLED for the comparable electroluminescence (EL) performance to metal phosphorescent complexes counterparts but without the presence of precious metal elements. This review summarizes the different types of TADF small molecules with various photophysical properties and the state-of-the-art molecular design strategies. Furthermore, the device engineering and emerging optoelectronic applications, such as organic light-emitting electrochemical cells, organic lasing, and organic scintillators are introduced. It is anticipated that the review can clarify the design of efficient TADF emitters and point out the direction of future development.

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Novel Series of Mononuclear Aluminum Complexes for High‐Performance Solution‐Processed Organic Light‐Emitting Devices

Cited by 14 publications

References 38 publications

Diversity of Luminescent Metal Complexes in OLEDs: Beyond Traditional Precious Metals

Diversity of Luminescent Metal Complexes in OLEDs: Beyond Traditional Precious Metals

Recent advances in the design of afterglow materials: mechanisms, structural regulation strategies and applications

Thermally activated delayed fluorescence materials for organic light-emitting diodes

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