Back to Search
Start Over
3,3′-Bicarbazole-Based Host Molecules for Solution-Processed Phosphorescent OLEDs
- Source :
- Molecules, Vol 23, Iss 4, p 847 (2018), Molecules; Volume 23; Issue 4; Pages: 847, Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- Solution-processed organic light-emitting diodes (OLEDs) are attractive due to their low-cost, large area displays, and lighting features. Small molecules as well as polymers can be used as host materials within the solution-processed emitting layer. Herein, we report two 3,3′-bicarbazole-based host small molecules, which possess a structural isomer relationship. 9,9′-Di-4-n-butylphenyl-9H,9′H-3,3′-bicarbazole (BCz-nBuPh) and 9,9′-di-4-t-butylphenyl-9H,9′H-3,3′-bicarbazole (BCz-tBuPh) exhibited similar optical properties within solutions but different photoluminescence within films. A solution-processed green phosphorescent OLED with the BCz-tBuPh host exhibited a high maximum current efficiency and power efficiency of 43.1 cd/A and 40.0 lm/W, respectively, compared to the device with the BCz-nBuPh host.
- Subjects :
- Photoluminescence
Materials science
Carbazoles
solution-processed OLED
Pharmaceutical Science
02 engineering and technology
010402 general chemistry
bicarbazole
01 natural sciences
Article
Fluorescence
Analytical Chemistry
Small Molecule Libraries
lcsh:QD241-441
lcsh:Organic chemistry
phosphorescent OLED
host
Drug Discovery
Structural isomer
OLED
Molecule
Physical and Theoretical Chemistry
Diode
chemistry.chemical_classification
Molecular Structure
business.industry
Organic Chemistry
Polymer
021001 nanoscience & nanotechnology
Small molecule
0104 chemical sciences
chemistry
Chemistry (miscellaneous)
Molecular Medicine
Optoelectronics
0210 nano-technology
business
Layer (electronics)
Subjects
Details
- ISSN :
- 14203049
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Molecules
- Accession number :
- edsair.doi.dedup.....6f9819052fb6c972a0da02b353b69573