Altering the Optoelectronic Properties of the PEDOT:PSS Hole Transport Layer with Sodium Polystyrenesulfonate to Enhance the Efficiency and Stability of Perovskite Light-Emitting Diode.

ABSTRACT: Altering the optoelectronic properties of the widely used hole transport layer (HTL), namely, poly-(3,4-ethylenedioxythiophene)-poly-(styrenesulfonate), commonly known as PEDOT:PSS, with sodium polystyrenesulfonate (Na-PSS) overcomes limitations of the conventional pristine PEDOT:PSS HTL-based optoelectronic devices. The introduction of Na-PSS into pristine PEDOT:PSS results in a reduced energy barrier between the HTL and light-emission layer (EML), leading to improved hole injection, thereby lowering the turn-on voltage and improving the perovskite light-emitting diode (Pe-LED) efficiency. The pH value of acidic pristine PEDOT:PSS is modulated by the addition of Na-PSS, which aids in preventing the corrosion of the underlying semitransparent indium-doped tin oxide (ITO) electrode. The mod

SUBMITTER: Mukherjee S 

PROVIDER: S-EPMC12163664 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature