TY - JOUR
T1 - Dispiro and Propellane
T2 - Novel Molecular Platforms for Highly Efficient Organic Light-Emitting Diodes
AU - Liu, Xiang Yang
AU - Tang, Xun
AU - Zhao, Yue
AU - Zhao, Danli
AU - Fan, Jian
AU - Liao, Liang Sheng
N1 - Funding Information:
We acknowledge the financial support from the National Key R&D Program of China (2016YFB0400703), the National Natural Science Foundation of China (21472135 and 61307036), Natural Science Foundation of Jiangsu Province of China (BK20151216), and the 111 Project. This project is also funded by Collaborative Innovation Center of Suzhou Nano Science and Technology (CIC-NANO), Soochow University and by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2018/1/17
Y1 - 2018/1/17
N2 - The incorporation of spatially oriented aromatic motifs in rigid molecular platforms is of great interest for the design of organic electronic materials. These structures can create unusual packing patterns and charge transport properties in the solid state which are not possible for simple planar structures. Herein, we showed that the novel dispiro and propellane motifs were successfully used as robust molecular platforms for the construction of host materials (TPA, Cz, SF, and SO). The propellane derivative with three functional groups arranged in the staggered conformation was studied for the first time as the host for organic light-emitting diodes (OLEDs). The green and red phosphorescent OLEDs hosted by these dispiro and propellane derivatives exhibited excellent electroluminescence performance. Particularly, the red OLED hosted by the propellane-type SF achieved maximum efficiencies of 47.3 cd A-1, 40.2 lm W-1, and 26.6% and 97.6 cd A-1, 77.8 lm W-1, and 27.0% for the green OLED without any light out-coupling enhancement. These results suggest that the dispiro and propellane molecular platforms have great potential in the construction of OLED materials.
AB - The incorporation of spatially oriented aromatic motifs in rigid molecular platforms is of great interest for the design of organic electronic materials. These structures can create unusual packing patterns and charge transport properties in the solid state which are not possible for simple planar structures. Herein, we showed that the novel dispiro and propellane motifs were successfully used as robust molecular platforms for the construction of host materials (TPA, Cz, SF, and SO). The propellane derivative with three functional groups arranged in the staggered conformation was studied for the first time as the host for organic light-emitting diodes (OLEDs). The green and red phosphorescent OLEDs hosted by these dispiro and propellane derivatives exhibited excellent electroluminescence performance. Particularly, the red OLED hosted by the propellane-type SF achieved maximum efficiencies of 47.3 cd A-1, 40.2 lm W-1, and 26.6% and 97.6 cd A-1, 77.8 lm W-1, and 27.0% for the green OLED without any light out-coupling enhancement. These results suggest that the dispiro and propellane molecular platforms have great potential in the construction of OLED materials.
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U2 - 10.1021/acsami.7b15645
DO - 10.1021/acsami.7b15645
M3 - Article
C2 - 29271187
AN - SCOPUS:85040710006
VL - 10
SP - 1925
EP - 1932
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 2
ER -