Enhancement of performance of OLEDs using double indolo[3,2-b]indole electron-donors based emitter

Tongsuk, Sukanya; Malatong, Ruttapol; Unjarern, Takdanai; Wongkaew, Chanikan; Surawatanawong, Panida; Sudyoadsuk, Taweesak; Promarak, Vinich; Ruangsupapichat, Nopporn

doi:10.1016/j.jlumin.2021.118287

Cited by 9 publications

(5 citation statements)

References 40 publications

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“…which showed blue green emission at 478 nm with maximum luminescence of 12,860 cd m −2 (Figure 3). [4b] The contribution of TADF mechanism was confirmed but its contribution was extremely low which explained the low EQE of 3.86% according to the authors.…”

Section: Applications Of Indoloindolesmentioning

confidence: 85%

Recent Advances towards the Synthesis and Material Applications of Indoloindoles

Paul

John

2022

Chemistry An Asian Journal

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An important class of N-heteroacenes is indoloindoles which are air-stable, electron-rich and possess many tuneable properties. Initially, indoloindoles were explored for potential biological applications but current interest is based on their performance as photovoltaic materials. With growing applications of indoloindoles across multiple facets as organic functional materials, the need for efficient methods to synthesize and functionalize indoloindoles has taken a centre stage. Over the years, synthetic routes leading to indoloindoles have evolved from multistep protocols to one-pot multicomponent synthesis. Present literature boasts of a variety of reports that employ metals such as Cu, Ru, Rh, Pd, or Au to mediate the reaction towards indoloindoles. As alternatives to such metal-mediated methods, researchers have also developed metal-free and catalyst-free conditions. Indoloindoles, which are fundamentally fused-indoles, are often synthesized by transforming indole derivatives but methods that employ anilines or arynes as the starting substrates are equally abundant. The present review highlights the rich diversity and versatility of recent literature for the synthesis of indolo[3,2-b]indoles, indolo[2,3-b]indoles, indolo[7,6-g]indoles, and indolo [5,4-e]indoles. This review discusses protocols that were explicitly designed to obtain the above-mentioned indoloindoles and also explores several other methods that can be adapted to access said heteroacenes. Available mechanistic details pertaining to novel transformations have been detailed for the readers. Various applications where indoloindoles function as organic lightemitting diodes, organic field-effect transistors, solar cells, etc. have also been delved into before concluding with an outlook on future research.

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Section: Applications Of Indoloindolesmentioning

confidence: 85%

Recent Advances towards the Synthesis and Material Applications of Indoloindoles

Paul

John

2022

Chemistry An Asian Journal

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“…indomethacin, sunitinib, arbidol, nintedanib, etc. [14][15][16][17] Indole derivatives, besides their strong pharmacological profile, find adequate applications in materials sciences, such as, organic light emitting diodes (OLEDs) [18][19][20] and biopolymers. [21][22][23] Use of this type of heterocyclic core is gradually increasing for preparing dye-sensitized solar cells.…”

Section: Introductionmentioning

confidence: 99%

Copper–Catalyzed Construction of the Indole Core: Recent Advancements

Das,

Dutta

2024

ChemistrySelect

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Indoles are one of the most important heterocycles because of their widespread occurrence in bioactive natural products, synthetic drugs and organic materials. Therefore, development of efficient strategies for synthesizing functionalized indoles has been of great importance in organic synthesis. Copper, being a transition metal, meet the goal due to its low toxicity, high catalytic activity and cost‐effectiveness. In this review, we focus on last five year (2019–2023) advancement in copper‐catalyzed annulations for the construction of indole core involving various N‐containing substrates, which include anilines, o‐alkynylanilines, o‐aminophenylpropynols, o‐alkynylnitroarenes, o‐nitrochalcones, azidoalkynes, isonitriles, nitriles, enamines, imines, etc. Mechanistic aspects of the reactions have also been highlighted for better understanding of the reaction pathways.

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“…The most commonly employed electron-donating aryl/heteroaryl units are phenothiazine, 23 triphenylamine, 24 diphenylamine, 25 carbazoles, 26 indole, 27 and pyrene, 28 and electron-acceptor moieties are pyridine, 29 quinoxaline, 30 benzothiazole, 31 and benzoxazole. 32 In the present work, a fused tricyclic ring system, viz ., a carbazole moiety, has been chosen as a fixed electron-donating scaffold since its derivatives find applications in many optoelectronic devices, for instance, organic thin film transistors (OTFTs), organic solar cells, and OLEDs due to their high thermal stability, emission efficiency, easy chemical functionalization, good film-forming ability, and their potential hole-transporting mobility associated with the electron-donating ability of the N -heterocyclic core ring.…”

Section: Introductionmentioning

confidence: 99%

Utilization of newly configured carbazole-cyanopyridone structural hybrids towards achieving high-performance cyan fluorescent organic light-emitting diodes

K S,

Ulla,

et al. 2024

Mater. Adv.

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Enhancement of performance of OLEDs using double indolo[3,2-b]indole electron-donors based emitter

Cited by 9 publications

References 40 publications

Recent Advances towards the Synthesis and Material Applications of Indoloindoles

Recent Advances towards the Synthesis and Material Applications of Indoloindoles

Copper–Catalyzed Construction of the Indole Core: Recent Advancements

Utilization of newly configured carbazole-cyanopyridone structural hybrids towards achieving high-performance cyan fluorescent organic light-emitting diodes

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