Triptycene derivatives having symmetric or asymmetric substituents and organic light emitting diode using the same
Triptycene derivatives having symmetric or asymmetric substituents are provided. The triptycene derivatives of the present invention may be applied in phosphorescent lighting devices ranging from deep blue to red and may be applied as a host material, an electron transporting material or a hole transporting material. An OLED device is also herein disclosed.
1. A triptycene derivative having a chemical formula represented by Formula (I):
wherein each of R 1 and R 2 is independently selected from the group consisting of the following:
2. The triptycene derivative as claimed in claim 1 , wherein R 1 and R 2 are the same.
3. The triptycene derivative as claimed in claim 1 , wherein R 1 and R 2 are different.
4. An organic light emitting diode, comprising:
a cathode;
an anode; and
an organic layer configured between the cathode and the anode and comprising a triptycene derivative having a chemical formula represented by Formula (I):
wherein each of R 1 and R 2 is independently selected from the group consisting of the following:
5. The organic light emitting diode as claimed in claim 4 , wherein R 1 and R 2 are the same.
6. The organic light emitting diode as claimed in claim 4 , wherein R 1 and R 2 are different.
7. The organic light emitting diode as claimed in claim 4 , wherein the organic light emitting diode is a blue phosphorescent light emitting diode, a green phosphorescent light emitting diode, or a red phosphorescent light emitting diode.
8. The organic light emitting diode as claimed in claim 4 , wherein the organic layer is a light-emitting layer, and the triptycene derivative is a host emitting material.
9. The organic light emitting diode as claimed in claim 4 , further comprising:
an emitting layer configured between the cathode and the anode, wherein the organic layer is an electron transport layer configured between the emitting layer and the cathode, and the triptycene derivative is an electron transport material.
10. The organic light emitting diode as claimed in claim 4 , further comprising:
an emitting layer configured between the cathode and the anode, wherein the organic layer is a hole transport layer configured between the emitting layer and the anode, and the triptycene derivative is a hole transport material.