Ink-jet-printable phosphorescent organic light-emitting-diode devices

被引：19

作者：

Sonoyama, Takuya ^{[1
]}

Ito, Masaki ^{[1
]}

Seki, Shunichi ^{[1
]}

Miyashita, Satoru ^{[1
]}

Xia, Sean ^{[2
]}

Brooks, Jason ^{[2
]}

Cheon, Kwang-Ohk ^{[2
]}

Kwong, Raymond C. ^{[2
]}

Inbasekaran, Michael ^{[2
]}

Brown, Julie J. ^{[2
]}

机构：

[1] Seiko Epson Corp, Display Dev Ctr, Fujimi, Nagano 3990293, Japan

[2] Univ Display Corp, Ewing, NJ USA

来源：

JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY | 2008年 / 16卷 / 12期

关键词：

Printable phosphorescent organic light-emitting-diode device; ink-jet printing; solution process; spin coating; small-molecule-based EML;

D O I：

10.1889/JSID16.12.1229

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel method for the fabrication of ink-jet-printed organic light-emitting-diode devices is discussed. Unlike previously reported solution-processed OLED devices, the emissive layer of OLED devices reported here does not contain polymeric materials. The emission of the ink-jet-printed P(2)OLED (IJ-P(2)OLED) device is demonstrated for the first time. It shows good color and uniform emission although it uses small-molecule solution. Ink-jet-printed green P(2)OLED devices possess a high luminous efficiency of 22 cd/A at 2000 cd/m(2) and is based on phosphorescent emission. The latest solution-processed phosphorescent OLED performance by spin-coating is disclosed. The red P(2)OLED exhibits a projected LT50 of > 53,000 hours with a luminous efficiency of 9 cd/A at 500 cd/m(2). The green P(2)OLED shows a projected LT50 of > 52,000 hours with a luminous efficiency of 35 cd/A at 1000 cd/m(2). Also discussed is a newly developed sky-blue P(2)OLED with a projected LT50 of > 3000 hour and a luminous efficiency of 18 cd/A at 500 cd/m(2).

引用

页码：1229 / 1236

页数：8

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