Low Current Density Driving Leads to Efficient, Bright and Stable Green Electroluminescence
Electroluminescent devices have the potential to reshape lighting and display technologies by providing low-energy consuming solutions with great aesthetic features, such as flexibility and transparency. In particular, light-emitting electrochemical cells (LECs) are among the simplest electro-luminescent devices. The device operates with air-stable materials and the active layer can be resumed to an ionic phosphorescent emitter. As a consequence, LECs can be assembled using solution-process technologies, which could allow for low-cost and large-area lighting applications in the future. High efficiencies have been reported at rather low luminances (<50 cd m(-2)) and at very low current densi…
Bis-Sulfone- and Bis-Sulfoxide-Spirobifluorenes: Polar Acceptor Hosts with Tunable Solubilities for Blue-Phosphorescent Light-Emitting Devices
Bis-sulfone- and bis-sulfoxide-spirobifluorenes are a promising class of high-triplet-energy electron-acceptor hosts for blue phosphorescent light-emitting devices. The molecular design and synthetic route are simple and facilitate tailoring of the solubilities of the host materials without lowering the high-energy triplet state. The syntheses and characterization (including single-crystal structures) of four electron-accepting hosts are reported; the trend in their reduction potentials is consistent with the electron-withdrawing nature of the sulfone or sulfoxide substituents. Emission maxima of 421–432 nm overlap with the MLCT absorption of the sky-blue emitter bis(4,6-difluorophenyl-pyri…
CCDC 974892: Experimental Crystal Structure Determination
Related Article: Cathrin D. Ertl, Henk J. Bolink, Catherine E. Housecroft, Edwin C. Constable, Enrique Ortí, José M. Junquera-Hernández, Markus Neuburger, Nail M. Shavaleev, Mohammad Khaja Nazeeruddin and David Vonlanthen|2016|Eur.J.Org.Chem.|2016|2037|doi:10.1002/ejoc.201600247
CCDC 993287: Experimental Crystal Structure Determination
Related Article: Cathrin D. Ertl, Henk J. Bolink, Catherine E. Housecroft, Edwin C. Constable, Enrique Ortí, José M. Junquera-Hernández, Markus Neuburger, Nail M. Shavaleev, Mohammad Khaja Nazeeruddin and David Vonlanthen|2016|Eur.J.Org.Chem.|2016|2037|doi:10.1002/ejoc.201600247
CCDC 974893: Experimental Crystal Structure Determination
Related Article: Cathrin D. Ertl, Henk J. Bolink, Catherine E. Housecroft, Edwin C. Constable, Enrique Ortí, José M. Junquera-Hernández, Markus Neuburger, Nail M. Shavaleev, Mohammad Khaja Nazeeruddin and David Vonlanthen|2016|Eur.J.Org.Chem.|2016|2037|doi:10.1002/ejoc.201600247