Conjugated Polymer-Driven Compact Crystal Packing and Efficient Charge Transport in Perovskite Quantum Dot Solar Cells.

ABSTRACT: The stability and performance of perovskite quantum dot (PQD) solar cells are often compromised due to surface defects, phase transitions under ambient conditions, and inefficient charge transport caused by random packing and long-chain insulating ligands. This study introduces a conjugated polymer ligand strategy to simultaneously address these challenges by enhancing both charge transport and nanocrystal packing orientation. Unlike conventional insulating ligands, these conjugated polymers exhibit strong interaction with PQD surfaces while facilitating preferred PQD packing through π-π stacking interactions, a mechanism previously unexplored in PQD assemblies. Functionalized with ethylene glycol side chains, these polymers effectively reduce defect density, improve crystallinity, and enh

SUBMITTER: Yoon TO 

PROVIDER: S-EPMC12490187 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature