Blue mixed host organic light emitting devices

S. W. Liu; C. A. Huang; J. H. Lee; K. H. Yang; C. C. Chen; Y. Chang

doi:10.1016/j.tsf.2003.11.092

Blue mixed host organic light emitting devices

S. W. Liu^*, C. A. Huang, J. H. Lee, K. H. Yang, C. C. Chen, Y. Chang

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

66 Scopus citations

Abstract

The lifetime is one of the main issues in the development of organic light-emitting devices (OLEDs). In this paper, we present a new OLED with an emitting layer (EML) based on a blue mixed-host (MH) structure. Compared to the conventional host-dopant system, the MH structure consists of two different hosts and one-dopant materials. Using the structure with different host ratio and fixed dopant concentration, the Commission International de L'Eclairage (CIE 1931) coordinates will shift from (0.17, 0.32) to (0.15, 0.22). The operating lifetime of optimal device is much improved over the heterostructure OLEDs, which shows the lifetime of approximately 110 h with initial luminance of 10000 cd/m². The luminance reaches 80370 cd/m² at 10 V, which corresponds to a luminous efficiency of 1.8 cd/A. The significant improvement in device lifetime is attributed to the elimination of the heterojunction interface and the prevention to the formation of fluorescence quenchers. These results demonstrate that the MH structure can extend lifetime without significantly changing the EML with common host material.

Original language	English
Pages (from-to)	312-315
Number of pages	4
Journal	Thin Solid Films
Volume	453-454
DOIs	https://doi.org/10.1016/j.tsf.2003.11.092
State	Published - 01 04 2004
Event	Proceedings of Symposium H on Photonic Processing of Surfaces - Strasbourg, France Duration: 10 06 2003 → 13 06 2003

Keywords

Blue organic light-emitting devices
Lifetime
Mixed host
OLED

Access to Document

10.1016/j.tsf.2003.11.092

Cite this

@article{5f0b558527034840a70200db2cb82606,

title = "Blue mixed host organic light emitting devices",

abstract = "The lifetime is one of the main issues in the development of organic light-emitting devices (OLEDs). In this paper, we present a new OLED with an emitting layer (EML) based on a blue mixed-host (MH) structure. Compared to the conventional host-dopant system, the MH structure consists of two different hosts and one-dopant materials. Using the structure with different host ratio and fixed dopant concentration, the Commission International de L'Eclairage (CIE 1931) coordinates will shift from (0.17, 0.32) to (0.15, 0.22). The operating lifetime of optimal device is much improved over the heterostructure OLEDs, which shows the lifetime of approximately 110 h with initial luminance of 10000 cd/m2. The luminance reaches 80370 cd/m2 at 10 V, which corresponds to a luminous efficiency of 1.8 cd/A. The significant improvement in device lifetime is attributed to the elimination of the heterojunction interface and the prevention to the formation of fluorescence quenchers. These results demonstrate that the MH structure can extend lifetime without significantly changing the EML with common host material.",

keywords = "Blue organic light-emitting devices, Lifetime, Mixed host, OLED",

author = "Liu, {S. W.} and Huang, {C. A.} and Lee, {J. H.} and Yang, {K. H.} and Chen, {C. C.} and Y. Chang",

year = "2004",

month = apr,

day = "1",

doi = "10.1016/j.tsf.2003.11.092",

language = "英语",

volume = "453-454",

pages = "312--315",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

note = "Proceedings of Symposium H on Photonic Processing of Surfaces ; Conference date: 10-06-2003 Through 13-06-2003",

}

TY - JOUR

T1 - Blue mixed host organic light emitting devices

AU - Liu, S. W.

AU - Huang, C. A.

AU - Lee, J. H.

AU - Yang, K. H.

AU - Chen, C. C.

AU - Chang, Y.

PY - 2004/4/1

Y1 - 2004/4/1

N2 - The lifetime is one of the main issues in the development of organic light-emitting devices (OLEDs). In this paper, we present a new OLED with an emitting layer (EML) based on a blue mixed-host (MH) structure. Compared to the conventional host-dopant system, the MH structure consists of two different hosts and one-dopant materials. Using the structure with different host ratio and fixed dopant concentration, the Commission International de L'Eclairage (CIE 1931) coordinates will shift from (0.17, 0.32) to (0.15, 0.22). The operating lifetime of optimal device is much improved over the heterostructure OLEDs, which shows the lifetime of approximately 110 h with initial luminance of 10000 cd/m2. The luminance reaches 80370 cd/m2 at 10 V, which corresponds to a luminous efficiency of 1.8 cd/A. The significant improvement in device lifetime is attributed to the elimination of the heterojunction interface and the prevention to the formation of fluorescence quenchers. These results demonstrate that the MH structure can extend lifetime without significantly changing the EML with common host material.

AB - The lifetime is one of the main issues in the development of organic light-emitting devices (OLEDs). In this paper, we present a new OLED with an emitting layer (EML) based on a blue mixed-host (MH) structure. Compared to the conventional host-dopant system, the MH structure consists of two different hosts and one-dopant materials. Using the structure with different host ratio and fixed dopant concentration, the Commission International de L'Eclairage (CIE 1931) coordinates will shift from (0.17, 0.32) to (0.15, 0.22). The operating lifetime of optimal device is much improved over the heterostructure OLEDs, which shows the lifetime of approximately 110 h with initial luminance of 10000 cd/m2. The luminance reaches 80370 cd/m2 at 10 V, which corresponds to a luminous efficiency of 1.8 cd/A. The significant improvement in device lifetime is attributed to the elimination of the heterojunction interface and the prevention to the formation of fluorescence quenchers. These results demonstrate that the MH structure can extend lifetime without significantly changing the EML with common host material.

KW - Blue organic light-emitting devices

KW - Lifetime

KW - Mixed host

KW - OLED

UR - http://www.scopus.com/inward/record.url?scp=1542426100&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2003.11.092

DO - 10.1016/j.tsf.2003.11.092

M3 - 会议文章

AN - SCOPUS:1542426100

SN - 0040-6090

VL - 453-454

SP - 312

EP - 315

JO - Thin Solid Films

JF - Thin Solid Films

T2 - Proceedings of Symposium H on Photonic Processing of Surfaces

Y2 - 10 June 2003 through 13 June 2003

ER -

Blue mixed host organic light emitting devices

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this