Organic light emitting materials and devices: From white light to near infrared

G. E. Jabbour, Jian Li, E. Williams

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this talk we will present our efforts in the area of white and near infrared organic light emitting diodes (OLEDs). White OLEDs are considered to have great potential in solid-state lighting and as back-lights for LCD displays. Many approaches have been reported for obtaining white OLEDs using materials such as small molecules and/or polymers. Among such approaches is the excimer OLED. We will present a modification to recent multilayer structures by employing (4',6'-difluorophenylpyridinato-N,C 2') platinum(II) (2,4-pentanedionato-O,O') [FPt] as a single dopant, which simplifies the fabrication process and in turn lowers the production cost without sacrificing performance. In this regard, we improve the device characteristics by incorporating novel carbazolyl-pyridine based host and modifying the device architecture. The device efficiency is enhanced from a previously reported 6% to over 10%. Such device also maintains an external quantum efficiency of 8 % at a brightness of 1000 cd/m 2. Additionally, a solution-processed excimer OLED and a high efficiency two-layer white OLED will be discussed. There are many avenues to be explored in the area of organic materials for infrared emission. For example, near infra-red diodes are currently employed in applications such as defense, security, telecommunications and bio-imaging. In this talk, we will present progress made in developing near infra-red OLEDs. The approach focuses on the use of heavy metal complexes as phosphorescent emitters. The choice of phosphorescent materials is due to the potential capability of harvesting both electrically generated singlet and triplet excitons (i.e., the possibility of 100% internal quantum efficiency). This presentation will include discussion related to development of novel, efficient cyclometalated Ir complexes and their use in near infra-red OLEDs. Improved device characteristics have been attained through the incorporation of novel charge-transporting and host materials, balancing charge injection and suitably confining excitons.

Original languageEnglish (US)
Title of host publicationProceedings of International Meeting on Information Display
Pages1544-1545
Number of pages2
Volume2006
StatePublished - 2006
EventIMID/IDMC 2006: 6th Internaional Meeting on Information Display and the 5th International Display Manufacturing Conference - Daegu, Korea, Republic of
Duration: Aug 22 2006Aug 25 2006

Other

OtherIMID/IDMC 2006: 6th Internaional Meeting on Information Display and the 5th International Display Manufacturing Conference
CountryKorea, Republic of
CityDaegu
Period8/22/068/25/06

Fingerprint

Organic light emitting diodes (OLED)
Infrared radiation
Quantum efficiency
Excitons
Charge injection
Metal complexes
Liquid crystal displays
Pyridine
Heavy metals
Platinum
Luminance
Multilayers
Diodes
Lighting
Display devices
Doping (additives)
Imaging techniques
Fabrication
Molecules
Polymers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jabbour, G. E., Li, J., & Williams, E. (2006). Organic light emitting materials and devices: From white light to near infrared. In Proceedings of International Meeting on Information Display (Vol. 2006, pp. 1544-1545)

Organic light emitting materials and devices : From white light to near infrared. / Jabbour, G. E.; Li, Jian; Williams, E.

Proceedings of International Meeting on Information Display. Vol. 2006 2006. p. 1544-1545.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jabbour, GE, Li, J & Williams, E 2006, Organic light emitting materials and devices: From white light to near infrared. in Proceedings of International Meeting on Information Display. vol. 2006, pp. 1544-1545, IMID/IDMC 2006: 6th Internaional Meeting on Information Display and the 5th International Display Manufacturing Conference, Daegu, Korea, Republic of, 8/22/06.
Jabbour GE, Li J, Williams E. Organic light emitting materials and devices: From white light to near infrared. In Proceedings of International Meeting on Information Display. Vol. 2006. 2006. p. 1544-1545
Jabbour, G. E. ; Li, Jian ; Williams, E. / Organic light emitting materials and devices : From white light to near infrared. Proceedings of International Meeting on Information Display. Vol. 2006 2006. pp. 1544-1545
@inproceedings{433fc0dd56bb4c42a2915f05cc615ead,
title = "Organic light emitting materials and devices: From white light to near infrared",
abstract = "In this talk we will present our efforts in the area of white and near infrared organic light emitting diodes (OLEDs). White OLEDs are considered to have great potential in solid-state lighting and as back-lights for LCD displays. Many approaches have been reported for obtaining white OLEDs using materials such as small molecules and/or polymers. Among such approaches is the excimer OLED. We will present a modification to recent multilayer structures by employing (4',6'-difluorophenylpyridinato-N,C 2') platinum(II) (2,4-pentanedionato-O,O') [FPt] as a single dopant, which simplifies the fabrication process and in turn lowers the production cost without sacrificing performance. In this regard, we improve the device characteristics by incorporating novel carbazolyl-pyridine based host and modifying the device architecture. The device efficiency is enhanced from a previously reported 6{\%} to over 10{\%}. Such device also maintains an external quantum efficiency of 8 {\%} at a brightness of 1000 cd/m 2. Additionally, a solution-processed excimer OLED and a high efficiency two-layer white OLED will be discussed. There are many avenues to be explored in the area of organic materials for infrared emission. For example, near infra-red diodes are currently employed in applications such as defense, security, telecommunications and bio-imaging. In this talk, we will present progress made in developing near infra-red OLEDs. The approach focuses on the use of heavy metal complexes as phosphorescent emitters. The choice of phosphorescent materials is due to the potential capability of harvesting both electrically generated singlet and triplet excitons (i.e., the possibility of 100{\%} internal quantum efficiency). This presentation will include discussion related to development of novel, efficient cyclometalated Ir complexes and their use in near infra-red OLEDs. Improved device characteristics have been attained through the incorporation of novel charge-transporting and host materials, balancing charge injection and suitably confining excitons.",
author = "Jabbour, {G. E.} and Jian Li and E. Williams",
year = "2006",
language = "English (US)",
volume = "2006",
pages = "1544--1545",
booktitle = "Proceedings of International Meeting on Information Display",

}

TY - GEN

T1 - Organic light emitting materials and devices

T2 - From white light to near infrared

AU - Jabbour, G. E.

AU - Li, Jian

AU - Williams, E.

PY - 2006

Y1 - 2006

N2 - In this talk we will present our efforts in the area of white and near infrared organic light emitting diodes (OLEDs). White OLEDs are considered to have great potential in solid-state lighting and as back-lights for LCD displays. Many approaches have been reported for obtaining white OLEDs using materials such as small molecules and/or polymers. Among such approaches is the excimer OLED. We will present a modification to recent multilayer structures by employing (4',6'-difluorophenylpyridinato-N,C 2') platinum(II) (2,4-pentanedionato-O,O') [FPt] as a single dopant, which simplifies the fabrication process and in turn lowers the production cost without sacrificing performance. In this regard, we improve the device characteristics by incorporating novel carbazolyl-pyridine based host and modifying the device architecture. The device efficiency is enhanced from a previously reported 6% to over 10%. Such device also maintains an external quantum efficiency of 8 % at a brightness of 1000 cd/m 2. Additionally, a solution-processed excimer OLED and a high efficiency two-layer white OLED will be discussed. There are many avenues to be explored in the area of organic materials for infrared emission. For example, near infra-red diodes are currently employed in applications such as defense, security, telecommunications and bio-imaging. In this talk, we will present progress made in developing near infra-red OLEDs. The approach focuses on the use of heavy metal complexes as phosphorescent emitters. The choice of phosphorescent materials is due to the potential capability of harvesting both electrically generated singlet and triplet excitons (i.e., the possibility of 100% internal quantum efficiency). This presentation will include discussion related to development of novel, efficient cyclometalated Ir complexes and their use in near infra-red OLEDs. Improved device characteristics have been attained through the incorporation of novel charge-transporting and host materials, balancing charge injection and suitably confining excitons.

AB - In this talk we will present our efforts in the area of white and near infrared organic light emitting diodes (OLEDs). White OLEDs are considered to have great potential in solid-state lighting and as back-lights for LCD displays. Many approaches have been reported for obtaining white OLEDs using materials such as small molecules and/or polymers. Among such approaches is the excimer OLED. We will present a modification to recent multilayer structures by employing (4',6'-difluorophenylpyridinato-N,C 2') platinum(II) (2,4-pentanedionato-O,O') [FPt] as a single dopant, which simplifies the fabrication process and in turn lowers the production cost without sacrificing performance. In this regard, we improve the device characteristics by incorporating novel carbazolyl-pyridine based host and modifying the device architecture. The device efficiency is enhanced from a previously reported 6% to over 10%. Such device also maintains an external quantum efficiency of 8 % at a brightness of 1000 cd/m 2. Additionally, a solution-processed excimer OLED and a high efficiency two-layer white OLED will be discussed. There are many avenues to be explored in the area of organic materials for infrared emission. For example, near infra-red diodes are currently employed in applications such as defense, security, telecommunications and bio-imaging. In this talk, we will present progress made in developing near infra-red OLEDs. The approach focuses on the use of heavy metal complexes as phosphorescent emitters. The choice of phosphorescent materials is due to the potential capability of harvesting both electrically generated singlet and triplet excitons (i.e., the possibility of 100% internal quantum efficiency). This presentation will include discussion related to development of novel, efficient cyclometalated Ir complexes and their use in near infra-red OLEDs. Improved device characteristics have been attained through the incorporation of novel charge-transporting and host materials, balancing charge injection and suitably confining excitons.

UR - http://www.scopus.com/inward/record.url?scp=33846147339&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846147339&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33846147339

VL - 2006

SP - 1544

EP - 1545

BT - Proceedings of International Meeting on Information Display

ER -