ICCAS OpenIR
Morphologically and electrochemically stable bipolar host for efficient green electrophosphorescence
Tao, Youtian1; Gong, Shaolong1; Wang, Qiang2,3; Zhong, Cheng1; Yang, Chuluo1; Qin, Jingui1; Ma, Dongge2
2010
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume12Issue:10Pages:2438-2442
AbstractA new host tBu-o-CzOXD is facilely synthesized through a simple aromatic nucleophilic substitution reaction between 3,6-di-tert-butyl-9H-carbazole and 2,5-bis(2-fluorophenyl)-1,3,4-oxadiazole. Its thermal, electrochemical, electronic absorption and photoluminescent properties are fully investigated. A high glass transition temperature (T(g)) of 149 degrees C is observed for tBu-o-CzOXD due to the introduction of bulky tert-butyl moiety, significantly higher than 97 degrees C of o-CzOXD without tert-butyl substituent. Moreover, encapsulation of tert-butyl on the 3- and 6-positions of carbazole greatly enhances the electrochemical stability as compared to o-CzOXD. Green phosphorescent OLEDs hosted by tBu-o-CzOXD show a maximum luminance of 48293 cd m(-2) at 17.1 V, a maximum current efficiency of 38.4 cd A(-1) and a maximum power efficiency of 34.7 lm W(-1). Furthermore, the devices exhibit a slow current efficiency roll-off. The device merits, together with the excellent morphological and electrochemical stability, make the new compound an ideal host material for phosphorescent emitters.
DOI10.1039/b922110g
Indexed BySCI
Language英语
WOS IDWOS:000274920200019
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69764
Collection中国科学院化学研究所
Corresponding AuthorYang, Chuluo
Affiliation1.Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Tao, Youtian,Gong, Shaolong,Wang, Qiang,et al. Morphologically and electrochemically stable bipolar host for efficient green electrophosphorescence[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2010,12(10):2438-2442.
APA Tao, Youtian.,Gong, Shaolong.,Wang, Qiang.,Zhong, Cheng.,Yang, Chuluo.,...&Ma, Dongge.(2010).Morphologically and electrochemically stable bipolar host for efficient green electrophosphorescence.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,12(10),2438-2442.
MLA Tao, Youtian,et al."Morphologically and electrochemically stable bipolar host for efficient green electrophosphorescence".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 12.10(2010):2438-2442.
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