Synthesis of Dendritic Oligo-Spiro(fluorene-9,9'-xanthene) Derivatives with Carbazole and Fluorene Pendants and their Thermal, Optical, and Electroluminescent Properties

Zengze Chu; Dan Wang; Chao Zhang; Xing Fan; Yanwei Tang; Lin Chen; Dechun Zou

doi:10.1002/marc.200900268

Synthesis of Dendritic Oligo-Spiro(fluorene-9,9'-xanthene) Derivatives with Carbazole and Fluorene Pendants and their Thermal, Optical, and Electroluminescent Properties

Macromol Rapid Commun. 2009 Oct 19;30(20):1745-50. doi: 10.1002/marc.200900268. Epub 2009 Jul 15.

Authors

Zengze Chu¹, Dan Wang, Chao Zhang, Xing Fan, Yanwei Tang, Lin Chen, Dechun Zou

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

PMID: 21638448
DOI: 10.1002/marc.200900268

Abstract

Two novel spiro-configured ter(arylene-ethynylene) derivatives, TSF-Cz and TSF-F, have been designed and synthesized using spiro(fluorene-9,9'-xanthene) (SFX) as building blocks, introducing a hole-transporting carbazole and a fluorene chromophore as the peripheral functional group into the backbone through an oxygen atom. The two well-defined oligomers possess good solubility, film-forming quality, and high T(g) 's at 140 and 126 °C, respectively. In addition, these oligomers exhibit blue photoluminescence (PL) emission both in solution and solid states. The double-layered devices fabricated using the two materials as the emitter show a sky-blue emission with a brightness and a current efficiency of 7 613 cd · m(-2) and 1.11 cd · A(-1) for TSF-Cz, and 1 507 cd · m(-2) and 0.36 cd · A(-1) for TSF-F, respectively.