A New Family of Isophorone-Based Dopants for Red Organic Electroluminescent Devices
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- 作者：Jiuyan Li ; Di Liu ; Ziruo Hong ; Shiwun Tong ; Pengfei Wang ; Chunwah Ma ; Ondrej Lengyel ; Chun-Sing Lee ; Hoi-Lun Kwong ; and Shuittong Lee
- 刊名：Chemistry of Materials
- 出版年：2003
- 出版时间：April 8, 2003
- 年：2003
- 卷：15
- 期：7
- 页码：1486 - 1490
- 全文大小：95K
- 年卷期：v.15,no.7(April 8, 2003)
- ISSN：1520-5002
文摘
A new family of isophorone-based red fluorescent materials (A, B, C, and D) with a typicaldonor-
-acceptor structure was designed and synthesized for use in organic light-emittingdevices (OLEDs). The asymmetrical -conjugation structure of the isophorone skeletonfacilitates the formation of highly pure products in comparison with the synthesis of pyran-containing DCM analogues. Saturated red-emitting devices with emission peaks at 640-680 nm were fabricated using these materials as dopants. The current efficiencies weremoderately 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 devicesusing DCM analogues.
-acceptor structure was designed and synthesized for use in organic light-emittingdevices (OLEDs). The asymmetrical -conjugation structure of the isophorone skeletonfacilitates the formation of highly pure products in comparison with the synthesis of pyran-containing DCM analogues. Saturated red-emitting devices with emission peaks at 640-680 nm were fabricated using these materials as dopants. The current efficiencies weremoderately 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 devicesusing DCM analogues.