3-[3-(9-Dibenzofuran-2-ylcarbazol-3-yl)phenyl]-9-(3,4-didehydrodibenzofuran-2-yl)carbazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 3-[3-(9-Dibenzofuran-2-ylcarbazol-3-yl)phenyl]-9-(3,4-didehydrodibenzofuran-2-yl)carbazole
• 英文别名: 3-[3-(9-dibenzofuran-2-ylcarbazol-3-yl)phenyl]-9-(3,4-didehydrodibenzofuran-2-yl)carbazole
• 化学式: C₅₄H₃₀N₂O₂
• 分子量: 738.8
• InChiKey: QBLURNWSCADDQC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.1
• 重原子数：
  58
• 可旋转键数：
  4
• 环数：
  13.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  36.1
• 氢给体数：
  0
• 氢受体数：
  2

文献信息

• PHOSPHORESCENT ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING DEVICE
  申请人：Konica Minolta, Inc.

  公开号：EP2709182A1

  公开（公告）日：2014-03-19

  Provided is a white light-emitting organic electroluminescent element which comprises a plurality of phosphorescent dopants having different emission wavelengths and which has high efficiency, long service life and excellent chromaticity stability in terms of driving voltage and in terms of drive over time. This organic electroluminescent element is characterized in that: the element comprises a pair of electrodes on a substrate and two light-emitting layers arranged between the electrodes, each of said light-emitting layers containing a host material and a phosphorescent dopant; the host material of the two light-emitting layers are composed of different compounds; at least one of the phosphorescent dopants contained in the two light-emitting layers is a blue phosphorescent dopant having an ionization potential (Ip) of 5.3 eV or less; at least one of the two light-emitting layers contains a plurality of phosphorescent dopants; and the concentration of the blue phosphorescent dopant at least in the positive electrode-side light-emitting layer has a concentration gradient in the thickness direction of the light-emitting layer with a higher concentration on the positive electrode side.

  本发明提供了一种白色发光的有机电致发光元件，它由多种具有不同发射波长的磷光掺杂剂组成，在驱动电压和驱动时间方面具有高效率、长使用寿命和出色的色度稳定性。这种有机电致发光元件的特征在于：该元件包括基底上的一对电极和布置在电极之间的两个发光层，每个发光层都包含一种主材料和一种磷光掺杂剂；两个发光层的主材料由不同的化合物组成；两个发光层中包含的磷光掺杂剂中至少有一种是蓝色磷光掺杂剂，其电离电位（Ip）为 5.3 eV 或更低；两个发光层中至少有一个包含多个磷光掺杂剂；蓝色磷光掺杂剂的浓度至少在正电极侧发光层中具有沿发光层厚度方向的浓度梯度，正电极侧的浓度较高。