Emissive Polyelectrolytes As Interlayer for Color Tuning and Electron Injection in Solution-Processed Light-Emitting Devices

被引：14

作者：

Tekoglu, Serpil ^{[1
,2
]}

Petzoldt, Martin ^{[2
,3
]}

Stolz, Sebastian ^{[1
,2
]}

Bunz, Uwe H. F. ^{[3
]}

Lemmer, Uli ^{[1
,4
]}

Hamburger, Manuel ^{[2
,3
,5
]}

Hernandez-Sosa, Gerardo ^{[1
,2
]}

机构：

[1] Karlsruhe Inst Technol, Light Technol Inst, Engesserstr 13, D-76131 Karlsruhe, Germany

[2] Innovat Lab, Speyerer Str 4, D-69115 Heidelberg, Germany

[3] Heidelberg Univ, Organ Chem Inst, Neuenheimer Feld 270, D-69120 Heidelberg, Germany

[4] Karlsruhe Inst Technol, Inst Microstruct Technol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[5] Merck KGaA, Frankfurter Str 250, D-64293 Darmstadt, Germany

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 11期

关键词：

polyfluorene; conjugated polyelectrolyte; electron injection layer; OLEDs; LECs; ELECTROCHEMICAL-CELLS; WHITE-LIGHT; ORGANIC ELECTRONICS; CONJUGATED POLYMERS; DIODES; FLUORESCENCE; FABRICATION; BLEND;

D O I：

10.1021/acsami.6b00665

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Herein we present a solution-processed hybrid device architecture combining organic light-emitting diodes (OLEDs) and light-emitting electrochemical cells (LECs) in a bilayer architecture. The LEC interlayer promotes the charge injection from an air-stable Ag cathode as well as permits the color tuning of the device emission. To this end, we used an alcohol-soluble anionic polyfluorene derivative, the properties of which were investigated by absorption and photoluminescence spectroscopy as well as by cyclic voltammetry. The bilayer device exhibited operating voltages similar to 6 V and a color tuning of the emission spectrum dependent on the LEC interlayer thickness. The hybrid devices presented a color emission ranging from the yellow (x = 0.39, y = 0.47) toward the green region (x = 0.29, y = 0.4) of the Commission Internationale de I'Eclairage (CIE) 1931 chromaticity diagram.

引用

页码：7320 / 7325

页数：6

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