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Recent advances in conjugated polymers for light emitting devices.

Alsalhi MS, Alam J, Dass LA, Raja M - Int J Mol Sci (2011)

Bottom Line: Recently, developed conjugated polymers are also functioning as roll-up displays for computers and mobile phones, flexible solar panels for power portable equipment as well as organic light emitting diodes in displays, in which television screens, luminous traffic, information signs, and light-emitting wallpaper in homes are also expected to broaden the use of conjugated polymers as light emitting polymers.Furthermore, since conjugated polymers have been approved as light-emitting organic materials similar to inorganic semiconductors, it is clear to motivate these organic light-emitting devices (OLEDs) and organic lasers for modern lighting in terms of energy saving ability.In addition, future aspects of conjugated polymers in LEDs were also highlighted in this review.

View Article: PubMed Central - PubMed

Affiliation: King Abdullah Institute for Nanotechnology, P.O. Box 2455, King Saud University, Riyadh 11451, Saudi Arabia; E-Mails: malsalhi@ksu.edu.sa (M.S.A.); ldass@ksu.edu.sa (L.A.D.); rmohan@ksu.edu.sa (M.R.).

ABSTRACT
A recent advance in the field of light emitting polymers has been the discovery of electroluminescent conjugated polymers, that is, kind of fluorescent polymers that emit light when excited by the flow of an electric current. These new generation fluorescent materials may now challenge the domination by inorganic semiconductor materials of the commercial market in light-emitting devices such as light-emitting diodes (LED) and polymer laser devices. This review provides information on unique properties of conjugated polymers and how they have been optimized to generate these properties. The review is organized in three sections focusing on the major advances in light emitting materials, recent literature survey and understanding the desirable properties as well as modern solid state lighting and displays. Recently, developed conjugated polymers are also functioning as roll-up displays for computers and mobile phones, flexible solar panels for power portable equipment as well as organic light emitting diodes in displays, in which television screens, luminous traffic, information signs, and light-emitting wallpaper in homes are also expected to broaden the use of conjugated polymers as light emitting polymers. The purpose of this review paper is to examine conjugated polymers in light emitting diodes (LEDs) in addition to organic solid state laser. Furthermore, since conjugated polymers have been approved as light-emitting organic materials similar to inorganic semiconductors, it is clear to motivate these organic light-emitting devices (OLEDs) and organic lasers for modern lighting in terms of energy saving ability. In addition, future aspects of conjugated polymers in LEDs were also highlighted in this review.

Show MeSH
Conjugated polymeric light emitting materials.
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f2-ijms-12-02036: Conjugated polymeric light emitting materials.

Mentions: The first use of conjugated polymers was as conductors in applications varying from battery electrodes to long-term stable polymer capacitors [29–37]. However, in the late 1980s, a group headed by Prof. Richard Friend of Cambridge University, UK, discovered a new application for these polymers, namely as an electroluminescent device. His work showed that the semiconductive conjugated polymer poly (p-phenylenevinylene) (PPV) showed electroluminescent characteristics if an appropriate choice of contact layers was made. Since then, tremendous progress in this field has been made in many aspects such as fundamental science in order to realize commercial applications, opportunities for processing, device structures and performances in addition to new conjugated polymers and their derivatives as electroluminescent materials [38–51] where some of promising electroluminescent conjugated polymers and their derivatives are shown in Figure 2. Many excellent research papers, patents and reviews were published concerning these aspects, which promoted conjugated polymers to be promising EL materials [52–57].


Recent advances in conjugated polymers for light emitting devices.

Alsalhi MS, Alam J, Dass LA, Raja M - Int J Mol Sci (2011)

Conjugated polymeric light emitting materials.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC3111649&req=5

f2-ijms-12-02036: Conjugated polymeric light emitting materials.
Mentions: The first use of conjugated polymers was as conductors in applications varying from battery electrodes to long-term stable polymer capacitors [29–37]. However, in the late 1980s, a group headed by Prof. Richard Friend of Cambridge University, UK, discovered a new application for these polymers, namely as an electroluminescent device. His work showed that the semiconductive conjugated polymer poly (p-phenylenevinylene) (PPV) showed electroluminescent characteristics if an appropriate choice of contact layers was made. Since then, tremendous progress in this field has been made in many aspects such as fundamental science in order to realize commercial applications, opportunities for processing, device structures and performances in addition to new conjugated polymers and their derivatives as electroluminescent materials [38–51] where some of promising electroluminescent conjugated polymers and their derivatives are shown in Figure 2. Many excellent research papers, patents and reviews were published concerning these aspects, which promoted conjugated polymers to be promising EL materials [52–57].

Bottom Line: Recently, developed conjugated polymers are also functioning as roll-up displays for computers and mobile phones, flexible solar panels for power portable equipment as well as organic light emitting diodes in displays, in which television screens, luminous traffic, information signs, and light-emitting wallpaper in homes are also expected to broaden the use of conjugated polymers as light emitting polymers.Furthermore, since conjugated polymers have been approved as light-emitting organic materials similar to inorganic semiconductors, it is clear to motivate these organic light-emitting devices (OLEDs) and organic lasers for modern lighting in terms of energy saving ability.In addition, future aspects of conjugated polymers in LEDs were also highlighted in this review.

View Article: PubMed Central - PubMed

Affiliation: King Abdullah Institute for Nanotechnology, P.O. Box 2455, King Saud University, Riyadh 11451, Saudi Arabia; E-Mails: malsalhi@ksu.edu.sa (M.S.A.); ldass@ksu.edu.sa (L.A.D.); rmohan@ksu.edu.sa (M.R.).

ABSTRACT
A recent advance in the field of light emitting polymers has been the discovery of electroluminescent conjugated polymers, that is, kind of fluorescent polymers that emit light when excited by the flow of an electric current. These new generation fluorescent materials may now challenge the domination by inorganic semiconductor materials of the commercial market in light-emitting devices such as light-emitting diodes (LED) and polymer laser devices. This review provides information on unique properties of conjugated polymers and how they have been optimized to generate these properties. The review is organized in three sections focusing on the major advances in light emitting materials, recent literature survey and understanding the desirable properties as well as modern solid state lighting and displays. Recently, developed conjugated polymers are also functioning as roll-up displays for computers and mobile phones, flexible solar panels for power portable equipment as well as organic light emitting diodes in displays, in which television screens, luminous traffic, information signs, and light-emitting wallpaper in homes are also expected to broaden the use of conjugated polymers as light emitting polymers. The purpose of this review paper is to examine conjugated polymers in light emitting diodes (LEDs) in addition to organic solid state laser. Furthermore, since conjugated polymers have been approved as light-emitting organic materials similar to inorganic semiconductors, it is clear to motivate these organic light-emitting devices (OLEDs) and organic lasers for modern lighting in terms of energy saving ability. In addition, future aspects of conjugated polymers in LEDs were also highlighted in this review.

Show MeSH