High-luminance perovskite light-emitting diodes with high-polarity alcohol solvent treating PEDOT:PSS as hole transport layer.

ABSTRACT:

Background

Perovskite light-emitting diodes (PeLEDs) are fabricated with a structure of indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/CH₃NH₃PbBr₃ (MAPbBr₃)/1,3,5-tris(2-N-phenylbenzimidazolyl) benzene (TPBi)/Ag.

Pedot

PSS films treated with alcohols including methanol, ethanol, and isopropanol are used to realize high-performance PeLEDs. Among them, by using PEDOT:PSS film treated by methanol as the hole transport layer, the PeLED with a maximum luminance of 2075 cd m^-2 and a maximum current efficiency of 0.38 cd A^-1 is achieved. Meanwhile, the result shows that the luminance of PeLEDs increases with the polarity of alcohol solvent. The conductivity of PEDOT:PSS film

SUBMITTER: Wu M 

PROVIDER: S-EPMC5919892 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature