Method for Preparing a Metal Oxide Composite Thin Film and Metal Oxide Composite Thin Film Prepared Thereby, Method for Preparing a Perovskite Photoelectric Device and Perovskite Photoelectric Device Prepared Thereby

Functional Ligand-Based Metal Oxide Composite Thin-Film Technology

This technology relates to a composite thin film that simultaneously improves the dispersibility and conductivity of metal oxide nanoparticles by using functional ligands, and to a perovskite photoelectric device employing the same.

Conventional metal oxide thin films have suffered from low nanoparticle dispersion stability, and organic ligands have often interfered with charge transport, reducing device efficiency. This technology introduces functional ligands that control surface defects and optimize particle dispersion and conductive pathways within the thin film.

As a result, it can improve the uniformity and charge-transport properties of the metal oxide composite thin film, thereby enhancing the efficiency and process reliability of perovskite photoelectric devices.

Key Features:

• It controls surface defects of metal oxide nanoparticles by introducing functional ligands.
• It realizes a composite thin-film structure that improves dispersion stability and conductivity at the same time.
• It can be used as a charge-transport layer or functional layer in perovskite photoelectric devices.