期刊
CHEMISTRY OF MATERIALS
卷 15, 期 7, 页码 1486-1490出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm0209822
关键词
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A new family of isophorone-based red fluorescent materials (A, B, C, and D) with a typical donor-pi-acceptor structure was designed and synthesized for use in organic light-emitting devices (OLEDs). The asymmetrical pi-conjugation structure of the isophorone skeleton facilitates the formation of highly pure products in comparison with the synthesis of pyran-containing DCM analogues. Saturated red-emitting devices with emission peaks at 640680 nm were fabricated using these materials as dopants. The current efficiencies were moderately high and remained unchanged, even at high current density in some devices. The CIE coordinates of all the devices were comparable with or better than those of devices using DCM analogues.
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