6533b7d3fe1ef96bd125fece
RESEARCH PRODUCT
Host–guest blue light-emitting electrochemical cells
Henk J. BolinkMohammad Khaja NazeeruddinAntonio PertegásEnrique OrtíNail M. ShavaleevDaniel Torderasubject
Organic electronicsMaterials scienceCarbazoleInorganic chemistryIonic bondingGeneral ChemistryElectroluminescenceElectrochemical cellchemistry.chemical_compoundchemistryHexafluorophosphateMaterials ChemistryCommon emitterBlue lightdescription
Carbazole, a commonly used hole-transporter for organic electronics, has been modified with an imidazolium cation and a hexafluorophosphate counter-anion to give an ionic hole-transporter. It has been applied as one of the hosts in a host–guest blue light-emitting electrochemical cell (LEC) with the neutral blue emitter FIrPic. We have obtained efficient and bright blue LECs with an electroluminescence maximum at 474 nm and efficacy of 5 cd A−1 at a luminance of 420 cd m−2, thereby demonstrating the potential of the ionic organic charge-transporters and of the host–guest architecture for LECs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 | J. Mater. Chem. C |