High coupling efficiency of microcavity organic light-emitting diode with optical fiber for as light source for optical interconnects

被引：11

作者：

Fukuda, Takeshi

Wei, Bin

Ohashi, Masakazu

Ichikawa, Musubu

Taniguchi, Yoshio

机构：

[1] Fujikura Ltd, Opt & Elect Lab, Appl Elect Technol Dept, Sakura, Chiba 2858550, Japan

[2] Shinshu Univ, Fac Text Sci & Technol, Dept Funct Polymer Sci, Ueda, Nagano 3868567, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 02期

关键词：

OLED; microcavity structure; tris(8-hydroxyquinolato) aluminum; optical interconnect; light source;

D O I：

10.1143/JJAP.46.642

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated directional characteristics of the electroluminescence (EL) from microcavity organic light-emitting diodes (MOLEDs) to examine applicability of these diodes as a light source for optical interconnects. By measuring the angular dependence of a EL emission, we estimated the coupling efficiency between a MOLED and an optical fiber. The coupling efficiency was enhanced by 1.4-fold compared with that of a non cavity organic light-emitting diode (OLED), and reached 85% for an optical fiber with a numerical aperture (NA) of 0.5. The current efficiency of the MOLED also increased optimizing the device structure, and its maximum was 18.4 cd/A.

引用

收藏

页码：642 / 646

页数：5

相关论文

共 20 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].

Adachi, C ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051

[2] Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J].

Baldo, MA ;

Lamansky, S ;

Burrows, PE ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 1999, 75 (01) :4-6

[3] Improved quantum efficiency for electroluminescence in semiconducting polymers [J].

Cao, Y ;

Parker, ID ;

Yu, G ;

Zhang, C ;

Heeger, AJ .

NATURE, 1999, 397 (6718) :414-417

[4] ENHANCEMENT OF QUANTUM EFFICIENCY IN THIN PHOTODIODES THROUGH ABSORPTIVE RESONANCE [J].

CHIN, A ;

CHANG, TY .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1991, 9 (03) :321-328

[5] Theoretical analysis on light-extraction efficiency of organic light-emitting diodes using FDTD and mode-expansion methods [J].

Chutinan, A ;

Ishihara, K ;

Asano, T ;

Fujita, M ;

Noda, S .

ORGANIC ELECTRONICS, 2005, 6 (01) :3-9

[6] Physics and applications of organic microcavity light emitting diodes [J].

Dodabalapur, A ;

Rothberg, LJ ;

Jordan, RH ;

Miller, TM ;

Slusher, RE ;

Phillips, JM .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (12) :6954-6964

[7]

GRUUNER J, 1996, J APPL PHYS, V80, P207

[8] Recent progress of molecular organic electroluminescent materials and devices [J].

Hung, LS ;

Chen, CH .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2002, 39 (5-6) :143-222

[9] Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode [J].

Hung, LS ;

Tang, CW ;

Mason, MG .

APPLIED PHYSICS LETTERS, 1997, 70 (02) :152-154

[10] Transient properties of organic electroluminescent diode using 8-hydroxyquinoline aluminum doped with rubrene as an electro-optical conversion device for polymeric integrated devices [J].

Kajii, H ;

Tsukagawa, T ;

Taneda, T ;

Yoshino, K ;

Ozaki, M ;

Fujii, A ;

Hikita, M ;

Tomaru, S ;

Imamura, S ;

Takenaka, H ;

Kobayashi, J ;

Yamamoto, F ;

Ohmori, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2002, 41 (4B) :2746-2748