A blue light emitting polymer with phenylenevinylene segments in the side‐chains

Hesemann, Peter; Vestweber, H.; Pommerehne, J.; Mahrt, Rainer F.; Greiner, Andreas

doi:10.1002/adma.19950070409

Cited by 45 publications

(30 citation statements)

References 14 publications

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“…This concept has been extended to electroluminescent materials in order to obtain amorphous materials with well defined conjugated segments and high glass transition temperatures [208]. Furthermore, any type of functionalizable dye or charge transport material may be used as a side chain, allowing a great range of emission wavelengths and charge transport properties [209].…”

Section: Side Chain Polymers With Linked Chromophoresmentioning

confidence: 99%

The chemistry of electroluminescent organic materials

Segura¹

1998

Acta Polym.

287

200

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Electroluminescence has been a subject of interest for several decades because of its many applications in areas such as telecommunications or information displays. Light‐emitting diodes using p‐n junctions of inorganic semiconductors have dominated the field in the last twenty years; however, efficient blue emission has only recently been achieved and inorganic semiconductors are difficult to form over large areas, making the process uneconomic. During the last decade, an explosive growth of activity in the area of organic electroluminescence has occurred in both academia and industry, stimulated by the promise of light‐emitting plastics for the fabrication of large, flexible, inexpensive and efficient screens to be used in different applications. Thus, a substantial amount of research is presently directed towards color control and improvement of manufacturability and reliability of devices in order to make their commercialization viable. A great deal of work has been carried out by physicists and materials scientists concerned with the preparation of different device structures and with the use of different techniques for device manufacture. However, all this work would not be possible without the continuous efforts of synthetic chemists to prepare materials with enhanced luminescent properties and processabilities. This article provides a review of the main types of organic materials that have been used in the fabrica‐tion of light‐emitting diodes either as emitting materials or as charge‐transport layers. Special attention will be paid to the different synthetic strategies that have been followed in order to tune the color of the emission, to increase stability of materials and to enhance their processabilities.

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Section: Side Chain Polymers With Linked Chromophoresmentioning

confidence: 99%

The chemistry of electroluminescent organic materials

Segura¹

1998

Acta Polym.

287

200

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“…In contrast, polymers with side-chain arylene vinylene segments linked without flexible spacers to the main chain results in improved solubility (Fig. 15B) [79,82]. [83].…”

Section: Polymers With Arylene Vinylene Segments In the Side Chainmentioning

confidence: 87%

Design and synthesis of polymers for light-emitting diodes

Greiner

1998

Polym. Adv. Technol.

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Polymers with aromatic ϕ‐conjugated moieties were utilized as electroluminescent materials. In order to meet the requirements for light‐emitting diodes (LED), the design and synthesis of electroluminescent polymers had to be developed and viewed in this review. Focus is on polymers with arylene vinylene, arylene ethinylene, phenylene, thiophene and arylene amine moieties as light‐emitting, hole‐transporting and electron‐transporting materials in LED devices. An attempt has been made to arrange a structural classification of electroluminescent polymers in nonsegmented and segmented polymers. © 1998 John Wiley & Sons, Ltd.

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“…Hesemann et al [17] reported LEDs in which distyrylbenzene chromophores are attached as pendent side-chains to a polystyrene backbone to obtain an amorphous, glassy polymer with a glass transition temperature of 165°C. Blue-green emission was obtained, peaked at 500 nm.…”

Section: Leds Based On Polymers With Pendent Oligomeric Side-chainsmentioning

confidence: 99%