BibTex format
@article{Vasilopoulou:2021:10.1038/s41467-021-25135,
author = {Vasilopoulou, M and Mohd, Yusoff ARB and Daboczi, M and Conforto, J and Gavim, AEX and da, Silva WJ and Macedo, AG and Soultati, A and Pistolis, G and Schneider, FK and Dong, Y and Jacoutot, P and Rotas, G and Jang, J and Vougioukalakis, GC and Chochos, CL and Kim, J-S and Gasparini, N},
doi = {10.1038/s41467-021-25135},
journal = {Nature Communications},
title = {High efficiency blue organic light-emitting diodes with below-bandgap electroluminescence},
url = {http://dx.doi.org/10.1038/s41467-021-25135},
volume = {12},
year = {2021}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Blue organic light-emitting diodes require high triplet interlayer materials, which induce large energetic barriers at the interfaces resulting in high device voltages and reduced efficiencies. Here, we alleviate this issue by designing a low triplet energy hole transporting interlayer with high mobility, combined with an interface exciplex that confines excitons at the emissive layer/electron transporting material interface. As a result, blue thermally activated delay fluorescent organic light emitting diodes with a below-bandgap turn-on voltage of 2.5 V and an external quantum efficiency of 41.2% were successfully fabricated. These devices also showed suppressed efficiency roll-off maintaining an EQE of 34.8% at 1000 cd m-2. Our approach paves the way for further progress through exploring alternative device engineering approaches instead of only focusing on the demanding synthesis of organic compounds with complex structures.
AU - Vasilopoulou,M
AU - Mohd,Yusoff ARB
AU - Daboczi,M
AU - Conforto,J
AU - Gavim,AEX
AU - da,Silva WJ
AU - Macedo,AG
AU - Soultati,A
AU - Pistolis,G
AU - Schneider,FK
AU - Dong,Y
AU - Jacoutot,P
AU - Rotas,G
AU - Jang,J
AU - Vougioukalakis,GC
AU - Chochos,CL
AU - Kim,J-S
AU - Gasparini,N
DO - 10.1038/s41467-021-25135
PY - 2021///
SN - 2041-1723
TI - High efficiency blue organic light-emitting diodes with below-bandgap electroluminescence
T2 - Nature Communications
UR - http://dx.doi.org/10.1038/s41467-021-25135
UR - http://hdl.handle.net/10044/1/90999
VL - 12
ER -
