Impact of the TCO Microstructure on the Electronic Properties of Carbazole-Based Self-Assembled Monolayers.

ABSTRACT: Carbazole-based self-assembled monolayers (PACz-SAMs), anchored via their phosphonic acid group on a transparent conductive oxide (TCO), have demonstrated excellent performance as hole-selective layers in perovskite/silicon tandem solar cells. Yet, whereas different PACz-SAMs have been explored, the role of the TCO, and specifically its microstructure, on the hole transport properties of the TCO/PACz-SAMs stack has been largely overlooked. Here, we demonstrate that the TCO microstructure directly impacts the work function (WF) shift after SAM anchoring and is responsible for WF variations at the micro/nanoscale. Specifically, we studied Sn-doped In₂O₃ (ITO) substrates with amorphous and polycrystalline (featuring either nanoscale- or microscale-sized grains) microstru

SUBMITTER: Kralj S 

PROVIDER: S-EPMC10848288 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature