An Ambipolar BODIPY Derivative for a White Exciplex OLED and Cholesteric Liquid Crystal Laser toward Multifunctional Devices

被引：127

作者：

Chapran, Marian ^{[1
,2
]}

Angioni, Enrico ^{[3
]}

Findlay, Neil J. ^{[3
]}

Breig, Benjamin ^{[3
]}

Cherpak, Vladyslav ^{[5
,6
]}

Stakhira, Pavlo ^{[2
]}

Tuttle, Tell ^{[3
]}

Volyniuk, Dmytro ^{[4
]}

Grazulevicius, Juozas V. ^{[4
]}

Nastishin, Yuriy A. ^{[5
,6
]}

Lavrentovich, Oleg D. ^{[5
,6
]}

Skabara, Peter J. ^{[3
]}

机构：

[1] Lodz Univ Technol, Dept Mol Phys, Zeromskiego 116, PL-90924 Lodz, Poland

[2] Lviv Polytech Natl Univ, S Bandera 12, UA-79013 Lvov, Ukraine

[3] Univ Strathclyde, Dept Pure & Appl Chem, WestCHEM, Glasgow G1 1XL, Lanark, Scotland

[4] Kaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Plentas 19, LT-50254 Kaunas, Lithuania

[5] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

[6] Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 05期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会; 欧盟地平线“2020”;

关键词：

organic light-emitting diodes (OLEDs); white light; exciplex; BODIPY dye; cholesteric liquid crystal (ChLC) laser; LIGHT-EMITTING-DIODES; PUMPED MIRRORLESS LASING; SOLID-STATE FLUORESCENCE; HOST MATERIAL; EMISSION; DYES; EFFICIENT; CARRIER; TRANSPORT;

D O I：

10.1021/acsami.6b13689

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of 3.3 X 10(-4) and 2 X 10(-4) cm(2) V-1 s(-1), respectively, at electric fields higher than 5.3 x 10(5) V cm(-1). The resulting WOLED exhibited a maximum luminance of 6579 cd m(-2) with CIE 1931 color coordinates (0.39; 0.35). The bThBODIPY dye is also demonstrated to be an effective laser dye for a cholesteric liquid crystal (ChLC) laser. New construction of the ChLC laser, by which a flat capillary with an optically isotropic dye solution is sandwiched between two dye-free ChLC cells, provides photonic lasing at a wavelength well matched with that of a dye-doped planar ChLC cell.

引用

页码：4750 / 4757

页数：8

共 58 条

[1] A single emitting layer white OLED based on exciplex interface emission [J].