High current density in light-emitting transistors of organic single crystals

被引：191

作者：

Takenobu, Taishi ^{[1
,2
]}

Bisri, Satria Zulkarnaen ^{[1
]}

Takahashi, Tetsuo ^{[1
]}

Yahiro, Masayuki ^{[3
]}

Adachi, Chihaya ^{[3
]}

Iwasa, Yoshihiro ^{[1
,2
]}

机构：

[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

[2] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan

[3] Kyushu Univ, Ctr Future Chem, Nishi, Fukuoka 8190395, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.100.066601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measured the external electroluminescence quantum efficiency (eta(ext)) in light-emitting field-effect transistors (LETs) made of organic single crystals and found that, in the ambipolar transport region, eta(ext) is not degraded up to several hundreds A/cm(2) current-density range, which is 2 orders of magnitude larger than that achieved in conventional organic light-emitting diodes. The present result indicates the single-crystal organic LET is a promising device structure that is free from various kinds of nonradiative losses such as exciton dissociation near electrodes and exciton annihilations.

引用

页数：4

共 27 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] Photonic band structure and emission characteristics of a metal-backed polymeric distributed feedback laser [J].

Andrew, P ;

Turnbull, GA ;

Samuel, IDW ;

Barnes, WL .

APPLIED PHYSICS LETTERS, 2002, 81 (06) :954-956

[3] Prospects for electrically pumped organic lasers [J].

Baldo, MA ;

Holmes, RJ ;

Forrest, SR .

PHYSICAL REVIEW B, 2002, 66 (03) :353211-3532116

[4] Ambipolar field-effect transistor of high photoluminescent material tetraphenylpyrene (TPPy) single crystal [J].

Bisri, Satria Zulkarnaen ;

Takahashi, Tetsuo ;

Takenobu, Taishi ;

Yahir, Masayuki ;

Adachi, Chihaya ;

Iwasa, Yoshihiro .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (20-24) :L596-L598

[5] Organic single-crystal field-effect transistors [J].

de Boer, RWI ;

Gershenson, ME ;

Morpurgo, AF ;

Podzorov, V .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1302-1331

[6]

Dimitrakopoulos CD, 2002, ADV MATER, V14, P99, DOI 10.1002/1521-4095(20020116)14:2<99::AID-ADMA99>3.0.CO

[7]

2-9

[8] Electroluminescence in conjugated polymers [J].

Friend, RH ;

Gymer, RW ;

Holmes, AB ;

Burroughes, JH ;

Marks, RN ;

Taliani, C ;

Bradley, DDC ;

Dos Santos, DA ;

Brédas, JL ;

Lögdlund, M ;

Salaneck, WR .

NATURE, 1999, 397 (6715) :121-128

[9] The influence of annihilation processes on the threshold current density of organic laser diodes [J].

Gaertner, Christian ;

Karnutsch, Christian ;

Lemmer, Uli ;

Pflumm, Christof .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (02)

[10] Light-emitting field-effect transistor based on a tetracene thin film [J].

Hepp, A ;

Heil, H ;

Weise, W ;

Ahles, M ;

Schmechel, R ;

von Seggern, H .

PHYSICAL REVIEW LETTERS, 2003, 91 (15) :157406-157406

← 1 2 3 →