Work

ZnO quantum dots as an electron-transport layer for highly efficient and stable organic solar cells

Year: 2025

Type: article

Abstract: BM absorber exhibit a PCE of 18.86%, surpassing similar cells with bulk-like ZnO ETL (18.15%). The ZnO QDs exhibited size-dependent electron-transport efficiency, with the highest performance achieved for QDs of 4.4-4.5 nm, decreasing for larger QDs down to the level of the bulk-like ZnO reference. A correlation between the photoluminescence and electron-transport efficiencies of ZnO quantum dots (QDs) was observed and interpreted in terms of an interplay between the defect state density and exciton confinement in size-selected ZnO QDs.

Source: Nanoscale

DOI: 10.1039/d5nr01722j

Authors: Abdus Saboor, Oleksandr Stroyuk, Oleksandra Raievska, Chao Liu, Jens Hauch, Christoph J. Brabec

Institutions: Forschungszentrum Jülich, Friedrich-Alexander-Universität Erlangen-Nürnberg, Helmholtz Institute Erlangen-Nürnberg

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Funders: Deutscher Akademischer Austauschdienst, Helmholtz Association