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Strong circularly polarized electroluminescence based on chiral salen-Zn(<scp>ii</scp>) complex monomer chromophores
- Source :
- Materials Chemistry Frontiers. 3:867-873
- Publication Year :
- 2019
- Publisher :
- Royal Society of Chemistry (RSC), 2019.
-
Abstract
- In this work, two chiral salen-Zn(II) complex enantiomers (R-/S-ZnL) were shown to exhibit weak blue-green colored circularly polarized luminescence (CPL) signals with dissymmetry factors (gem) of the order of about 10−3 both in THF solution and KBr pellet-dispersed state. The R-/S-ZnL enantiomers were used to fabricate circularly polarized organic light-emitting diodes, obtaining values of 1000 cd m−2, 0.181 cd A−1 and 0.074 lm W−1 for the maximum brightness, current efficiency and power efficiency, respectively, and the dissymmetry factor of the electroluminescent devices (gEL) could reach ±0.044 at around 490 nm. This study first reports circularly polarized electroluminescence (CP-EL) based on a salen-Zn(II) complex chromophore, which can provide a new strategy for developing promising CP-EL materials.
- Subjects :
- Brightness
Materials science
02 engineering and technology
Chromophore
Electroluminescence
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Monomer
chemistry
Materials Chemistry
Physical chemistry
General Materials Science
Enantiomer
0210 nano-technology
Luminescence
Diode
Subjects
Details
- ISSN :
- 20521537
- Volume :
- 3
- Database :
- OpenAIRE
- Journal :
- Materials Chemistry Frontiers
- Accession number :
- edsair.doi...........fbdff6280eb5e3240a5db7f2b37f2651