Induction of circularly polarized electroluminescence from achiral poly(fluorene-alt-benzothiadiazole) by circularly polarized light

被引：22

作者：

Cheng, Junjie ^{[1
]}

Ge, Feng ^{[2
]}

Xiang, Yifeng ^{[3
,4
]}

Zhang, Hongli ^{[1
]}

Kuai, Yan ^{[3
,4
]}

Hou, Penghui ^{[1
]}

Zhang, Douguo ^{[3
,4
]}

Qiu, Longzhen ^{[2
]}

Zhang, Qijin ^{[1
]}

Zou, Gang ^{[1
]}

机构：

[1] Univ Sci & Technol China, iChEM, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, Peoples R China

[2] Hefei Univ Technol, Acad Optoelect Technol, State Key Lab Adv Display Technol,Key Lab Special, Natl Engn Lab Special Display Technol,Minist Educ, Hefei 230009, Anhui, Peoples R China

[3] Univ Sci & Technol China, Adv Laser Technol Lab Anhui Prov, Hefei 230026, Anhui, Peoples R China

[4] Univ Sci & Technol China, Inst Photon, Dept Opt & Opt Engn, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2020年 / 8卷 / 19期

基金：

中国国家自然科学基金;

关键词：

EMITTING-DIODES; SYMMETRY-BREAKING; BROAD-BAND; POLYMER; FILMS;

D O I：

10.1039/d0tc00741b

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Circularly polarized luminescence is rising to be the cynosure of a range of display and photonic technologies, including backlights, optical spintronics, and quantum information processing. Conventional strategies to directly generate circularly polarized electroluminescence from the emissive layer (EML) of organic light-emitting diodes (OLEDs), including the attachment of chiral pendants and use of chiral additives, have been well developed. Herein, we demonstrate that OLEDs based on achiral poly(9,9-di-n-hexylfluorene-alt-benzothiadiazole) (F6BT) could be induced to directly give a preferential emission of left- or right-handed circularly polarized electroluminescence just by simple treatment with circularly polarized light. The screw sense in F6BT could be easily controlled, and exhibited a strong dependence not only on the handedness but also on the wavelength of the driving circularly polarized light. This study sheds light on a unique design to realize circularly polarized electroluminescence from achiral compounds and pave the way for the fabrication of large-area and high-quality chiral optoelectronic devices.

引用

页码：6521 / 6527

页数：7

共 45 条

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