Substituent effects in twisted dibenzotetracene derivatives: Blue emitting materials for organic light-emitting diodes

A series of dibenzotetracene derivatives containing different substituents at the 11-,12-positions have been successfully synthesized and characterized. Single crystal X-ray analysis indicates that the new molecules have a twisted structure, which can effectively decrease the intermolecular aggregat...

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Published inDyes and pigments Vol. 112; pp. 176 - 182
Main Authors Xiao, Jinchong, Liu, Zhenying, Zhang, Xuemin, Wu, Weichen, Ren, Tiejun, Lv, Bo, Jiang, Li, Wang, Xuefei, Chen, Hua, Su, Wenming, Zhao, Jianwen
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.2015
Subjects
Acene
Optoelectronic property
Organic light-emitting diodes
Single crystal
Synthesis
Twisted structure
Twisted structure
Acene
Synthesis
Organic light-emitting diodes
Optoelectronic property
Single crystal
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Summary:A series of dibenzotetracene derivatives containing different substituents at the 11-,12-positions have been successfully synthesized and characterized. Single crystal X-ray analysis indicates that the new molecules have a twisted structure, which can effectively decrease the intermolecular aggregation in the solid-state. The effect of both substituent and packing on the corresponding physical properties was also investigated. In addition, organic light-emitting diodes doped with 11,12-difluoro-9,14-diphenyl-dibenzo[de,qr]tetracene into the emitter 9,9′-(1,3-phenylene)bis-9H-carbazole were fabricated and exhibit good performance. [Display omitted] •A series of dibenzotetracene derivatives were synthesized.•Single crystal analysis shows these compounds have twisted structures.•Electroluminescent devices were fabricated to assess the performance of the new dibenzotetracene.
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2014.07.007