Triphenylene containing host materials with high thermal stability for green phosphorescent organic light emitting diode

被引：21

作者：

Lee, Nam-Jin ^{[3
]}

Jeon, Joon Ho ^{[1
,2
]}

In, Insik ^{[3
]}

Lee, Ji-Hoon ^{[3
]}

Suh, Min Chul ^{[1
,2
]}

机构：

[1] Kyung Hee Univ, Dept Informat Display, Seoul 130701, South Korea

[2] Kyung Hee Univ, Adv Display Res Ctr, Seoul 130701, South Korea

[3] Korea Natl Univ Transportat, Dept Polymer Sci & Engn, Chungju Si 380702, Chungbuk, South Korea

来源：

DYES AND PIGMENTS | 2014年 / 101卷

基金：

新加坡国家研究基金会;

关键词：

Charge balance; Host materials; Green phosphorescent OLED; Triphenylene; Carbazole; Dibenzothiophene; PHOSPHINE-OXIDE; EFFICIENT GREEN; TRIPLET-ENERGY; BIPOLAR HOST; BLUE; PHOTOCONDUCTIVITY; IRIDIUM(III); CARBAZOLE; COMPLEXES; TRANSPORT;

D O I：

10.1016/j.dyepig.2013.09.046

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We report series of triphenylene derivatives with good electronic properties for the use as host materials for green phosphorescent organic light emitting diodes (PHOLEDs). We applied highly planar triphenylene moieties which could provide good electron transport ability and the carbazole or dibenzothiophene moieties which could provide good hole transport ability to obtain a bipolar host materials for green PHOLEDs. From this approach we achieved relatively good current efficiency up to 64 cd/A and external quantum efficiency up to 20.3%, respectively. This was the much more improved value (by similar to 22.3%) compare to that obtained from the 4,4'-N,N'-dicarbazolebiphenyl system as a reference. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：221 / 228

页数：8

共 37 条

[1] PHOTOCONDUCTIVITY IN THE COLUMNAR PHASES OF A GLASSY DISCOTIC TWIN [J].

ADAM, D ;

SCHUHMACHER, P ;

SIMMERER, J ;

HAUSSLING, L ;

PAULUS, W ;

SIEMENSMEYER, K ;

ETZBACH, KH ;

RINGSDORF, H ;

HAARER, D .

ADVANCED MATERIALS, 1995, 7 (03) :276-280

[2]

[Anonymous], 2008, ANGEW CHEM

[3] 1,3,5-Triazine derivatives as new electron transport-type host materials for highly efficient green phosphorescent OLEDs [J].

Chen, Hsiao-Fan ;

Yang, Shang-Jung ;

Tsai, Zhen-Han ;

Hung, Wen-Yi ;

Wang, Ting-Chih ;

Wong, Ken-Tsung .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (43) :8112-8118

[4] High efficiency and low roll-off blue phosphorescent organic light-emitting devices using mixed host architecture [J].

Chopra, Neetu ;

Swensen, James S. ;

Polikarpov, Evgueni ;

Cosimbescu, Lelia ;

So, Franky ;

Padmaperuma, Asanga B. .

APPLIED PHYSICS LETTERS, 2010, 97 (03)

[5] A Highly Efficient Universal Bipolar Host for Blue, Green, and Red Phosphorescent OLEDs [J].

Chou, Ho-Hsiu ;

Cheng, Chien-Hong .

ADVANCED MATERIALS, 2010, 22 (22) :2468-+

[6] FACIAL TRIS CYCLOMETALATED RH3+ AND IR3+ COMPLEXES - THEIR SYNTHESIS, STRUCTURE, AND OPTICAL SPECTROSCOPIC PROPERTIES [J].

COLOMBO, MG ;

BRUNOLD, TC ;

RIEDENER, T ;

GUDEL, HU ;

FORTSCH, M ;

BURGI, HB .

INORGANIC CHEMISTRY, 1994, 33 (03) :545-550

[7] A NEW SYNTHETIC ROUTE TO THE PREPARATION OF A SERIES OF STRONG PHOTOREDUCING AGENTS - FAC TRIS-ORTHO-METALATED COMPLEXES OF IRIDIUM(III) WITH SUBSTITUTED 2-PHENYLPYRIDINES [J].

DEDEIAN, K ;

DJUROVICH, PI ;

GARCES, FO ;

CARLSON, G ;

WATTS, RJ .

INORGANIC CHEMISTRY, 1991, 30 (08) :1685-1687

[8] Highly efficient green-emitting phosphorescent iridium dendrimers based on carbazole dendrons [J].

Ding, JQ ;

Gao, J ;

Cheng, YX ;

Xie, ZY ;

Wang, LX ;

Ma, DG ;

Jing, XB ;

Wang, FS .

ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (04) :575-581

[9] Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence [J].

Gong, Shaolong ;

He, Xun ;

Chen, Yonghua ;

Jiang, Zuoquan ;

Zhong, Cheng ;

Ma, Dongge ;

Qin, Jingui ;

Yang, Chuluo .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (07) :2894-2899

[10] Efficient, deep-blue organic electrophosphorescence by guest charge trapping [J].

Holmes, RJ ;

D'Andrade, BW ;

Forrest, SR ;

Ren, X ;

Li, J ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2003, 83 (18) :3818-3820

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