Improving the performance of quantum-dot light-emitting diodes via an organic-inorganic hybrid hole injection layer.

ABSTRACT: Poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) is a commonly used material for the hole injection layer (HIL) in quantum-dot light-emitting diodes (QLEDs). In this work, we improved the performance of the QLED by using an organic-inorganic hybrid HIL. The hybrid HIL was prepared by mixing PEDOT:PSS with vanadium oxide (V₂O₅), which is a transition-metal oxide (TMO). The hole injection properties of PEDOT:PSS were improved according to the amount of V₂O₅ mixed into the PEDOT:PSS. The maximum luminance and current efficiency were 36 198 cd m^-2 and 13.9 cd A^-1, respectively, when the ratio of PEDOT:PSS and V₂O₅ was 10 : 1. Moreover, the operating lifetime exceeded 300 h, which is 10 t

SUBMITTER: Shin JS 

PROVIDER: S-EPMC8694390 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature