Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes

Ho Jin Son; Won Sik Han; Kyu Bum Choi; Dae Hyun Kim; Jaejung Ko; Seung Uk Noh; Changhee Lee; Sang Ook Kang

doi:10.1557/proc-0965-s03-22

Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes

Ho Jin Son^*
, Won Sik Han
, Kyu Bum Choi
, Dae Hyun Kim
, Jaejung Ko
, Seung Uk Noh
, Changhee Lee
, Sang Ook Kang

^*Corresponding author for this work

Korea University (SEJONG)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The synthesis, photo-physics and electroluminescence of new types of Iridium(III)-encapsulated dendrimers are described. Thus, four different iridium complexes [Ir(III)(C∀N)₂(LX), Blue-DCBP, Green-DCBP, Yellow-DCBP, and Red-DCBP] with ancillary ligand tethered to the CBP dendritic unit were synthesized and investigated for their photo-physical properties. A large enhancement in electroluminescence performance was observed by using these dendrimers as host/dopant hybrid materials in layered emitting diodes. In particular, host/dopant ratio can be systematically adjusted by varying dendritic generations. These results demonstrate that new Ir(III)-encapsulated dendrimers can be used as potential single-layer materials for organic light emitting diodes. Large difference in the intra-molecular charge transfer phosphorescence quantum yields and electroluminescence effiencies were observed among dendriritic generations.

Original language	English
Title of host publication	Organic Electronics
Subtitle of host publication	Materials, Devices and Applications
Publisher	Materials Research Society
Pages	301-305
Number of pages	5
ISBN (Print)	9781604234176
DOIs	https://doi.org/10.1557/proc-0965-s03-22
Publication status	Published - 2006
Event	2006 MRS Fall Meeting - Boston, MA, United States Duration: 2006 Nov 27 → 2006 Dec 1

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	965
ISSN (Print)	0272-9172

Other

Other	2006 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	06/11/27 → 06/12/1

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/proc-0965-s03-22

Cite this

Son, H. J., Han, W. S., Choi, K. B., Kim, D. H., Ko, J., Noh, S. U., Lee, C., & Kang, S. O. (2006). Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes. In Organic Electronics: Materials, Devices and Applications (pp. 301-305). (Materials Research Society Symposium Proceedings; Vol. 965). Materials Research Society. https://doi.org/10.1557/proc-0965-s03-22

Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes. / Son, Ho Jin; Han, Won Sik; Choi, Kyu Bum et al.
Organic Electronics: Materials, Devices and Applications. Materials Research Society, 2006. p. 301-305 (Materials Research Society Symposium Proceedings; Vol. 965).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Son, HJ, Han, WS, Choi, KB, Kim, DH, Ko, J, Noh, SU, Lee, C & Kang, SO 2006, Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes. in Organic Electronics: Materials, Devices and Applications. Materials Research Society Symposium Proceedings, vol. 965, Materials Research Society, pp. 301-305, 2006 MRS Fall Meeting, Boston, MA, United States, 06/11/27. https://doi.org/10.1557/proc-0965-s03-22

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title = "Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes",

abstract = "The synthesis, photo-physics and electroluminescence of new types of Iridium(III)-encapsulated dendrimers are described. Thus, four different iridium complexes [Ir(III)(C∀N)2(LX), Blue-DCBP, Green-DCBP, Yellow-DCBP, and Red-DCBP] with ancillary ligand tethered to the CBP dendritic unit were synthesized and investigated for their photo-physical properties. A large enhancement in electroluminescence performance was observed by using these dendrimers as host/dopant hybrid materials in layered emitting diodes. In particular, host/dopant ratio can be systematically adjusted by varying dendritic generations. These results demonstrate that new Ir(III)-encapsulated dendrimers can be used as potential single-layer materials for organic light emitting diodes. Large difference in the intra-molecular charge transfer phosphorescence quantum yields and electroluminescence effiencies were observed among dendriritic generations.",

author = "Son, \{Ho Jin\} and Han, \{Won Sik\} and Choi, \{Kyu Bum\} and Kim, \{Dae Hyun\} and Jaejung Ko and Noh, \{Seung Uk\} and Changhee Lee and Kang, \{Sang Ook\}",

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doi = "10.1557/proc-0965-s03-22",

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series = "Materials Research Society Symposium Proceedings",

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AU - Son, Ho Jin

AU - Han, Won Sik

AU - Choi, Kyu Bum

AU - Kim, Dae Hyun

AU - Ko, Jaejung

AU - Noh, Seung Uk

AU - Lee, Changhee

AU - Kang, Sang Ook

PY - 2006

Y1 - 2006

N2 - The synthesis, photo-physics and electroluminescence of new types of Iridium(III)-encapsulated dendrimers are described. Thus, four different iridium complexes [Ir(III)(C∀N)2(LX), Blue-DCBP, Green-DCBP, Yellow-DCBP, and Red-DCBP] with ancillary ligand tethered to the CBP dendritic unit were synthesized and investigated for their photo-physical properties. A large enhancement in electroluminescence performance was observed by using these dendrimers as host/dopant hybrid materials in layered emitting diodes. In particular, host/dopant ratio can be systematically adjusted by varying dendritic generations. These results demonstrate that new Ir(III)-encapsulated dendrimers can be used as potential single-layer materials for organic light emitting diodes. Large difference in the intra-molecular charge transfer phosphorescence quantum yields and electroluminescence effiencies were observed among dendriritic generations.

AB - The synthesis, photo-physics and electroluminescence of new types of Iridium(III)-encapsulated dendrimers are described. Thus, four different iridium complexes [Ir(III)(C∀N)2(LX), Blue-DCBP, Green-DCBP, Yellow-DCBP, and Red-DCBP] with ancillary ligand tethered to the CBP dendritic unit were synthesized and investigated for their photo-physical properties. A large enhancement in electroluminescence performance was observed by using these dendrimers as host/dopant hybrid materials in layered emitting diodes. In particular, host/dopant ratio can be systematically adjusted by varying dendritic generations. These results demonstrate that new Ir(III)-encapsulated dendrimers can be used as potential single-layer materials for organic light emitting diodes. Large difference in the intra-molecular charge transfer phosphorescence quantum yields and electroluminescence effiencies were observed among dendriritic generations.

UR - https://www.scopus.com/pages/publications/40949164283

U2 - 10.1557/proc-0965-s03-22

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M3 - Conference contribution

AN - SCOPUS:40949164283

SN - 9781604234176

T3 - Materials Research Society Symposium Proceedings

SP - 301

EP - 305

BT - Organic Electronics

PB - Materials Research Society

T2 - 2006 MRS Fall Meeting

Y2 - 27 November 2006 through 1 December 2006

ER -

Dendritic iridium(III)-encapsulated complexes for organic light emitting diodes

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