Modified poly(3-alkylthiophene) for LED preparation

Bolognesi, A.; Botta, Chiara; Zhang, Geng; Flores, C.; Denti, L.

doi:10.1016/0379-6779(94)03216-s

Cited by 17 publications

(7 citation statements)

References 3 publications

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“…[32] This effect can be explained by improved confinement of excitons on the main chain due to increased interchain separation for polymers with longer side substituents. [33±35] A small red-shift in EL of polymer 10c compared to polymer 9e (from 1.8 eV to 1.95 eV) was presented as an indication of a lower bandgap in the former, [30,33] although it could be the result of asymmetry of the wide emission band (comparison with poly(3-decylthiophene) (P3DT) 9d reveals a smaller blue-shift of 0.05 eV [36] ). Polymers 10a,b showed high (for PTs) photoluminescence (PL) quantum yields in solution (38±45 % in THF); however, these quantum yields decreased in the films.…”

Section: Pts As Red-light Emittersmentioning

confidence: 95%

Light‐Emitting Polythiophenes

et al. 2005

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Polythiophenes are one of the most important classes of conjugated polymers, with a wide range of applications, such as conducting films, electrochromics, and field‐effect transistors, which have been the subject of a number of older and more recent reviews. Much less attention has been paid to the light‐emitting properties of this class of materials, although their unique properties present a number of opportunities unavailable from more popular polymeric light emitters such as polyfluorene or poly(p‐phenylene vinylene). This article reviews achievements to date in applications of thiophene‐based polymers and oligomers as electroluminescent materials. We demonstrate the basic principles of controlling the optical properties of polythiophenes through structural modifications and review the most important light‐emitting materials created from thiophene derivatives. Special attention is paid to consequences of structural variations on the performance of light‐emitting diodes fabricated with these materials.

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Section: Pts As Red-light Emittersmentioning

confidence: 95%

Light‐Emitting Polythiophenes

et al. 2005

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“…The use of charge carrier confinement layers [166] or doping with fluorescent dye materials [170] markedly increases device efficiency. Substitution of the hydrocarbon side chains as in 49 f ± h [171,172] produced a slight blue shift in the emission maximum and gave yellow-orange emission.…”

Section: Poly(3-alkylthiophene)sða Good Redmentioning

confidence: 99%

Electroluminescent Conjugated Polymers—Seeing Polymers in a New Light

Kraft

Grimsdale

Holmes

1998

Angewandte Chemie International Edition

3,133

1,692

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“…[141] Langmuir±Blodgett films of alkoxy PTs have also been prepared and studied. [142,143] Grignard preparation via Kumada coupling has led to alkoxy PTs [144,145] that have been studied in devices such as polymer LEDs.…”

Section: Chemical Synthesis Of Alkoxy Polythiophenesmentioning

confidence: 99%

The Chemistry of Conducting Polythiophenes

McCullough¹

1998

Adv. Mater.

1,477

912

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Directing the structure and function of polythiophenes (PTs) can lead to remarkable enhancements in the electronic and photonic properties of the resultant materials, as discussed in this comprehensive review of the chemistry and synthesis of PTs. The Figure illustrates the use of heteroatom‐functionalized PTs as chemical sensors: upon ion complexation PT conjugation is greatly reduced, leading to a sensory response.

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Modified poly(3-alkylthiophene) for LED preparation

Cited by 17 publications

References 3 publications

Light‐Emitting Polythiophenes

Light‐Emitting Polythiophenes

Electroluminescent Conjugated Polymers—Seeing Polymers in a New Light

The Chemistry of Conducting Polythiophenes

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