Highly Photoluminescent Nonconjugated Polymers for Single-Layer Light Emitting Diodes

Page, Zachariah A.; Chiu, Chien‐Yang; Narupai, Benjaporn; Laitar, David S.; Mukhopadhyay, Shayok; Sokolov, Anatoliy N.; Hudson, Zachary M.; Zerdan, Raghida Bou; McGrath, Alaina J.; Kramer, John W.; Barton, Bryan E.; Hawker, Craig J.

doi:10.1021/acsphotonics.6b00994

Cited by 26 publications

(25 citation statements)

References 52 publications

(68 reference statements)

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“…9). 35 They found that the PLQYs of the polymer neat films decreased with increasing Ir(ppy) 3 phosphor concentrations (0.5-29 mol.%), suggesting the presence of undesirable interchromophore interactions in the film when the phosphor content became more concentrated, which is consistent with the observations reported in the aforementioned studies. 27,29,31 Although the copolymer with 0.5 mol.% Ir(ppy) 3 phosphor exhibited the best PLQY of 81% among the series, a minimum of 3 mol.% phosphor was required to complete the energy transfer from the host to the dopant.…”

Section: Recent Advances In Non-conjugated Polymers For Pled Applicatsupporting

confidence: 80%

Recent Advances in Polymer Organic Light-Emitting Diodes (PLED) Using Non-conjugated Polymers as the Emitting Layer and Contrasting Them with Conjugated Counterparts

Wong

2017

Journal of Elec Materi

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Polymer organic light-emitting diodes (PLED) are one of the most studied subjects in flexible electronics thanks to their economical wet fabrication procedure for enhanced price advantage of the product device. In order to optimize PLED efficiency, correlating the polymer structure with the device performance is essential. An important question for the researchers in this field is whether the polymer backbone is conjugated or not as it affects the device performance. In this review, recent advances in non-conjugated polymers employed as the emitting layer in PLED devices are first discussed, followed by their contrast with the conjugated counterparts in terms of polymer synthesis, sample quality, physical properties and device performances. Such comparison between conjugated and non-conjugated polymers for PLED applications is rarely attempted, and; hence, this review shall provide a useful insight of emitting polymers employed in PLEDs.

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Section: Recent Advances In Non-conjugated Polymers For Pled Applicatsupporting

confidence: 80%

Recent Advances in Polymer Organic Light-Emitting Diodes (PLED) Using Non-conjugated Polymers as the Emitting Layer and Contrasting Them with Conjugated Counterparts

Wong

2017

Journal of Elec Materi

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“…This may be of particular use if the corresponding acrylic monomers required would exhibit markedly different kinetics if polymerized together, resulting in gradient, rather than random, copolymers. Indeed, polymeric materials with donor‐acceptor side‐chains have recently been used as emissive materials for OLEDs and as components of resistive memory …”

Section: Resultsmentioning

confidence: 99%

Synthesis of polymeric organic semiconductors using semifluorinated polymer precursors

Paisley

Tonge

Sauvé

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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The transesterification of 1,1,1,3,3,3‐hexafluoroisopropyl acrylate (HFIPA) homopolymers and block copolymers with methyl acrylate (MA) or n‐butyl acrylate (n‐BuA) were investigated for the efficient synthesis of p‐type and n‐type organic semiconductor acrylates. HFIPA, MA, and n‐BuA are readily prepared in a one‐pot synthesis by Cu(0) reversible deactivation radical polymerization in high yield with low dispersity to give poly(HFIPA)100, PMA100‐b‐poly(HFIPA)x, and PnBuA100‐b‐poly(HFIPA)x (x = 100, 50,25). The transesterification of poly(HFIPA)100 was also studied using 19F NMR spectroscopy. Based on this method, a series of eight homopolymers and three copolymers based on semiconductor motifs commonly found in organic light‐emitting diodes, organic thin‐film transistors, and organic photovoltaics were synthesized with narrow dispersity and conversions up to 99%. These experiments demonstrate that poly(HFIPA) can provide a useful building block in the synthesis of organic electronic materials, providing a simpler route to complex materials which may be challenging to access directly via controlled radical polymerization. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2183–2191

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“…In general, polymer metallocomplexes are an attractive solution, as they uniquely combine the advantages of small-molecular complexes with polymers’ superior film-forming properties and excellent thermal and chemical stability. Polymers containing iridium complexes, either along the main chain or as pendant groups, have been developed, mainly with the involvement of tris-bidentate complexes, affording polymeric metallocomplexes with a variety of emission colors [ 34 , 35 , 36 , 37 , 38 , 39 ]. However, bis-tridentate polymeric metallocomplexes are scarcer in the literature.…”

Section: Introductionmentioning

confidence: 99%

Bis-Tridendate Ir(III) Polymer-Metallocomplexes: Hybrid, Main-Chain Polymer Phosphors for Orange–Red Light Emission

et al. 2020

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In this work, hybrid polymeric bis-tridentate iridium(III) complexes bearing derivatives of terpyridine (tpy) and 2,6-di(phenyl) pyridine as ligands were successfully synthesized and evaluated as red-light emitters. At first, the synthesis of small molecular bis-tridendate Ir(III) complexes bearing alkoxy-, methyl-, or hydroxy-functionalized terpyridines and a dihydroxyphenyl-pyridine moiety was accomplished. Molecular complexes bearing two polymerizable end-hydroxyl groups and methyl- or alkoxy-decorated terpyridines were copolymerized with difluorodiphenyl-sulphone under high temperature polyetherification conditions. Alternatively, the post-polymerization complexation of the terpyridine-iridium(III) monocomplexes onto the biphenyl-pyridine main chain homopolymer was explored. Both cases afforded solution-processable metallocomplex-polymers possessing the advantages of phosphorescent emitters in addition to high molecular weights and excellent film-forming ability via solution casting. The structural, optical, and electrochemical properties of the monomeric and polymeric heteroleptic iridium complexes were thoroughly investigated. The polymeric metallocomplexes were found to emit in the orange–red region (550–600 nm) with appropriate HOMO and LUMO levels to be used in conjunction with blue-emitting hosts. By varying the metal loading on the polymeric backbone, the emitter’s specific emission maxima could be successfully tuned.

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Highly Photoluminescent Nonconjugated Polymers for Single-Layer Light Emitting Diodes

Cited by 26 publications

References 52 publications

Recent Advances in Polymer Organic Light-Emitting Diodes (PLED) Using Non-conjugated Polymers as the Emitting Layer and Contrasting Them with Conjugated Counterparts

Recent Advances in Polymer Organic Light-Emitting Diodes (PLED) Using Non-conjugated Polymers as the Emitting Layer and Contrasting Them with Conjugated Counterparts

Synthesis of polymeric organic semiconductors using semifluorinated polymer precursors

Bis-Tridendate Ir(III) Polymer-Metallocomplexes: Hybrid, Main-Chain Polymer Phosphors for Orange–Red Light Emission

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