Polymer light emitting diodes (PLEDs) based on the blend of 90% poly(9,9-dioctylfluorene) (F8) and 10% Super Yellow (SY) were used as the emissive layer and it exhibited high luminous efficiency up to ∼27 cd A−1. Hole-trapping nature native to the proposed blend system and efficient electron injection via Al/Ca/Cs2CO3 cathode was used against the conventional ITO/PEDOT:PSS anode which provided a well-balanced charge transport across the emissive layer. Thereby, the scheme maximizes the radiative recombination of these excitons within the bulk and away from the cathode. Consequently, non-radiative quenching effects at the cathode surface were avoided which resulted in ultrahigh efficiency of such devices.
This article was taken from Applied Materials Today 1 (2015) Pages 45 - 51
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actuators based on composite fibers comprising aligned reduced graphene oxide (rGO) nanosheets and PEDOT: PSS surpass biological muscles
Researchers have shown that an alloy of nickel and gold displays particularly promising thermoelectric properties.
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