Polymer Solar Cells with a Low‐Temperature‐Annealed Sol–Gel‐Derived MoO_x Film as a Hole Extraction Layer

Abstract

High power-conversion efficiencies (PCEs) from polymer solar cells with a low-temperature-annealed sol–gel-derived molybdenum oxide (S-MoOx) thin film as a buffer layer demonstrate that the S-MoOx (i.e., solution-processed) thin film can serve as the hole extraction layer in polymer solar cells in the quest for high performance.