Intrinsic Polarization and Tunable Color of Electroluminescence from Organic Single Crystal-based Light-Emitting Devices

被引：37

作者：

Ding, Ran ^{[1
]}

Feng, Jing ^{[1
]}

Zhou, Wei ^{[1
]}

Zhang, Xu-Lin ^{[1
]}

Fang, Hong-Hua ^{[1
]}

Yang, Tong ^{[3
]}

Wang, Hai-Yu ^{[1
]}

Hotta, Shu ^{[4
]}

Sun, Hong-Bo ^{[1
,2
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Phys, Changchun 130023, Peoples R China

[3] Univ Hong Kong, Fac Engn, Dept Elect & Elect Engn, Pokfulam, Hong Kong, Peoples R China

[4] Kyoto Inst Technol, Grad Sch Sci & Technol, Dept Macromol Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

关键词：

THIOPHENE/PHENYLENE CO-OLIGOMERS; AMPLIFIED SPONTANEOUS EMISSION; FIELD-EFFECT TRANSISTORS; DIODES; MICROCAVITY; LUMINESCENCE; EFFICIENCY;

D O I：

10.1038/srep12445

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A single crystal-based organic light-emitting device (OLED) with intrinsically polarized and color-tunable electroluminescence (EL) has been demonstrated without any subsequent treatment. The polarization ratio of 5:1 for the transversal-electric (TE) and transversal-magnetic (TM) polarization at the emission peak of 575 nm, and 4.7:1 for the TM to TE polarization at the emission peak of 635 nm, respectively, have been obtained. The emitting color is tunable between yellow, yellow-green and orange by changing the polarization angle. The polarized EL and the polarization-induced color tunability can be attributed to the anisotropic microcavity formed by the BP3T crystal with uniaxial alignment of the molecules.

引用

页数：10

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