3-(9-carbazolyl)carbazoles and 3,6-di(9-carbazolyl)carbazoles as effective host materials for efficient blue organic electrophosphorescence

被引：453

作者：

Tsai, Ming-Han

Hong, Yun-Hua

Chang, Chih-Hao

Su, Hai-Ching

Wu, Chung-Chih ^{[1
]}

Matoliukstyte, Ausra

Simokaitiene, Jurate

Grigalevicius, Saulius

Grazulevicius, Juozas V.

Hsu, Chao-Ping

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Electroopt Engn, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 106, Taiwan

[3] Kaunas Univ Technol, Dept Organ Technol, LT-50254 Kaunas, Lithuania

[4] Acad Sinica, Inst Chem, Taipei 106, Taiwan

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 06期

关键词：

D O I：

10.1002/adma.200600822

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Linking topology in oligocarbazoles (see figure) has a strong influence on their electronic properties. 3(6),9'-linked oligocarbazoles exhibit unusual suppression of electronic coupling between units, leading to localized excited states and very small reduction of triplet energies (compared to the monomer). Coupled with their excellent morphological stability, this makes them suitable as host materials for blue electrophosphorescence devices.

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页码：862 / +

页数：6

相关论文

共 26 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].

Adachi, C ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051

[2] Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials [J].

Adachi, C ;

Kwong, RC ;

Djurovich, P ;

Adamovich, V ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 2001, 79 (13) :2082-2084

[3] Quantum-chemical design of host materials for full-color triplet emission [J].

Avilov, I ;

Marsal, P ;

Brédas, JL ;

Beljonne, D .

ADVANCED MATERIALS, 2004, 16 (18) :1624-+

[4] Highly efficient phosphorescent emission from organic electroluminescent devices [J].

Baldo, MA ;

O'Brien, DF ;

You, Y ;

Shoustikov, A ;

Sibley, S ;

Thompson, ME ;

Forrest, SR .

NATURE, 1998, 395 (6698) :151-154

[5] DENSITY-FUNCTIONAL THERMOCHEMISTRY .3. THE ROLE OF EXACT EXCHANGE [J].

BECKE, AD .

JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (07) :5648-5652

[6] Carbazole compounds as host materials for triplet emitters in organic light-emitting diodes:: Tuning the HOMO level without influencing the triplet energy in small molecules [J].

Brunner, K ;

van Dijken, A ;

Börner, H ;

Bastiaansen, JJAM ;

Kiggen, NMM ;

Langeveld, BMW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) :6035-6042

[7]

Casida M.E., 2011, Recent Advances in Density Functional Methods, P155

[8] PEDT/PSS for efficient hole-injection in hybrid organic light-emitting diodes [J].

Elschner, A ;

Bruder, F ;

Heuer, HW ;

Jonas, F ;

Karbach, A ;

Kirchmeyer, S ;

Thurm, S .

SYNTHETIC METALS, 2000, 111 :139-143

[9] Synthesis and properties of poly(3,9-carbazole) and low-molar-mass glass-forming carbazole compounds [J].

Grigalevicius, S ;

Grazulevicius, JV ;

Gaidelis, V ;

Jankauskas, V .

POLYMER, 2002, 43 (09) :2603-2608

[10] Synthesis and properties of the polymers containing 3,3′-dicarbazyl units in the main chain and their model compounds [J].

Grigalevicius, S ;

Lideikis, E ;

Grazulevicius, JV ;

Gaidelis, V ;

Antulis, J ;

Jankauskas, V ;

Van, FT ;

Chevrot, C .

POLYMER, 2002, 43 (21) :5693-5697