Work

Iodine migration in lead halide perovskite solar cells investigated by X-ray photoelectron spectroscopy

Year: 2024

Type: article

Abstract: We investigate iodine migration in lead halide perovskite solar cells using X-ray photoelectron spectroscopy. We observe iodine migration to the surface direction at both the solar cell’s electrode and non-electrode regions. Our findings suggest that diffusion can drive iodine migration even without an electric field. We also detected iodine accumulation near the Ag electrode, probably related to increased series resistance and reduced efficiency. Present results highlight the need for a dense interfacial layer to suppress iodine migration.

Source: Japanese Journal of Applied Physics

DOI: 10.35848/1347-4065/ad90ec

Authors: Senku Tanaka, Lidón Gil-Escrig, Michele Sessolo, Henk J. Bolink

Institutions: Kindai University, Universitat de València

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funders: Kindai University, Kanazawa University, Japan Society for the Promotion of Science