標題: Novel host materials for single-component white organic light-emitting diodes based on 9-naphthylanthracene derivatives
作者: Wang, Lei
Wong, Wai-Yeung
Lin, Mei-Fang
Wong, Wai-Kwok
Cheah, Kok-Wai
Tam, Hoi-Lam
Chen, Chin H.
友訊交大聯合研發中心
D Link NCTU Joint Res Ctr
公開日期: 2008
摘要: A series of 9-naphthylanthracene based dimers and trimers were synthesized and characterized. TGA studies reveal that they are all thermally stable with decomposition temperatures well above 500 degrees C. Upon optical excitation, all of these dimers and trimers show intense blue emission in common organic solvents, accompanied by a new peak at long wavelength in the solid state. They exhibit nanosecond transient lifetimes consisting of two decay components, suggesting the formation of excimers. Single-component light-emitting electroluminescent devices based on these robust materials have been fabricated. The device based on 4,4'-bis(9-(1-naphthyl)anthracen-10-yl)biphenyl exhibits a maximum luminance efficiency of 7.0 cd A(-1) with CIE coordinates of (0.31, 0.36) and luminance of 1396 cd m(-2) at 6.9 V. The device based on 1,3,5-tris(9-(1-naphthyl)anthracen-10-yl)benzene exhibits a maximum luminance efficiency of 5.78 cd A(-1) with CIE coordinates of (0.33, 0.43) and luminance of 1156 cd m(-2) at 7.8 V.
URI: http://hdl.handle.net/11536/9885
http://dx.doi.org/10.1039/b806183a
ISSN: 0959-9428
DOI: 10.1039/b806183a
期刊: JOURNAL OF MATERIALS CHEMISTRY
Volume: 18
Issue: 38
起始頁: 4529
結束頁: 4536
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