期刊
INORGANIC CHEMISTRY
卷 48, 期 15, 页码 7230-7236出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic900673s
关键词
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资金
- National Natural Science Foundation of China [50733002]
- Major State Basic Research Development Program [2009CB623600]
- 863 Project [2006AA03A162]
- 111 Project [1306009]
Four diboron-contained ladder-type pi-conjugated compounds 1-4 were designed and synthesized. Their thermal, photophysical, electrochemical properties, as well as density functional theory calculations, were fully investigated. The single crystals of compounds 1 and 3 were grown, and their crystal structures were determined by X-ray diffraction analysis. Both compounds have a ladder-type g-conjugated framework. Compounds I and 2 possess high thermal stabilities, moderate solid-state fluorescence quantum yields, as well as stable redox properties, indicating that they are possible candidates for emitters and charge-transporting materials in electroluminescent (EL) devices. The double-layer device with the configuration of [ITO/NPB (40 nm)/1 or 2 (70 nm)/LiF (0.5 nm)/Al (200 nm)] exhibited good EL performance with the maximum brightness exceeding 8000 cd/m(2).
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