Design of Phosphorescent Organic Light Emitting Diodes (OLED) Host Materials Based on Carbazole: Quantum Chemistry Study on Carrier Transport Properties of Oxazole Derivatives

2019 ◽  
Vol 14 (7) ◽  
pp. 900-910
Author(s):  
Mingming Li
Keyword(s):  
Quantum Chemistry ◽  
Transport Properties ◽  
Carrier Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Oxazole Derivatives ◽  
Carrier Transport Properties

Design principles of carbazole/dibenzothiophene derivatives as host material in modern efficient organic light-emitting diodes

2017 ◽  
Vol 5 (28) ◽  
pp. 6989-6996 ◽  
Author(s):  
Junming Li ◽  
Shou-Cheng Dong ◽  
Andreas Opitz ◽  
Liang-Sheng Liao ◽  
Norbert Koch
Keyword(s):  
Carrier Transport ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Photophysical Properties ◽  
Energy Levels ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials

Host materials for modern high-efficiency organic light-emitting diodes (OLEDs) based on phosphorescence and thermally activated delayed fluorescence were optimized with respect to thermal stability, photophysical properties, energy levels, and charge carrier transport.

scholarly journals Phenanthro[9,10-d]triazole and imidazole derivatives: high triplet energy host materials for blue phosphorescent organic light emitting devices

2019 ◽  
Vol 6 (6) ◽  
pp. 1179-1186 ◽  
Author(s):  
Muazzam Idris ◽  
Caleb Coburn ◽  
Tyler Fleetham ◽  
JoAnna Milam-Guerrero ◽  
Peter I. Djurovich ◽  
...  
Keyword(s):  
Transport Properties ◽  
Light Emitting Diodes ◽  
Wide Bandgap ◽  
Organic Light Emitting Diodes ◽  
Triplet Energy ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent

A class of wide bandgap host materials is introduced as an alternative to carbazole-based hosts to enhance the efficiency and transport properties of organic light emitting diodes (OLEDs).

Carrier Transport Dependence on Phosphorescent Materials in Polymer Based OLEDs

2012 ◽  
Vol 1402 ◽  
Author(s):  
Genichi Motomura ◽  
Mitsunori Suzuki ◽  
Takahisa Shimizu ◽  
Hideo Fujikake
Keyword(s):  
Transport Properties ◽  
Carrier Transport ◽  
Energy Levels ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
Dispersive Transport ◽  
Light Emitting ◽  
Organic Light ◽  
Electron Transport Properties ◽  
Carrier Transport Properties

ABSTRACTThe carrier transport properties in the emissive layer of phosphorescent polymer organic light-emitting diodes (OLEDs) were observed by time-of-flight (TOF) mobility measurements. The hole and electron mobilities in carrier transport polymer without iridium complexes were measured with high levels, 3 × 10-4 cm2/Vs (hole) and 1 × 10-3 cm2/Vs (electron), of non-dispersive transport. The hole and/or electron transport properties were degraded when the iridium complexes were included in the phosphorescent polymers. The complexes acted as a trap in the phosphorescent polymers when the energy levels of the iridium complexes were lower than that of the carrier transport polymer.

Development of efficient solution-processed red phosphorescent organic light-emitting diodes using carrier transport materials

2010 ◽  
Vol 160 (15-16) ◽  
pp. 1623-1626 ◽  
Author(s):  
Myungkwan Song ◽  
Jin Su Park ◽  
Chul-Hyun Kim ◽  
Jang Soo Kim ◽  
Yeong-Soon Gal ◽  
...  
Keyword(s):  
Carrier Transport ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

High-efficiency red, green and blue phosphorescent homojunction organic light-emitting diodes based on bipolar host materials

2011 ◽  
Vol 12 (5) ◽  
pp. 843-850 ◽  
Author(s):  
Chao Cai ◽  
Shi-Jian Su ◽  
Takayuki Chiba ◽  
Hisahiro Sasabe ◽  
Yong-Jin Pu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent
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