@article{bd3682e8cb0f481ca3eff9afb2c38c41,
title = "Open-circuit voltage deficit in Cu2ZnSnS4 solar cells by interface bandgap narrowing",
abstract = "There is evidence that interface recombination in Cu2ZnSnS4 solar cells contributes to the open-circuit voltage deficit. Our hybrid density functional theory calculations suggest that electron-hole recombination at the Cu2ZnSnS4/CdS interface is caused by a deeper conduction band that slows electron extraction. In contrast, the bandgap is not narrowed for the Cu2ZnSnS4/CdS interface, consistent with a lower open-circuit voltage deficit.",
author = "Park, {Ji Sang} and Sunghyun Kim and Hood, {Samantha N.} and Aron Walsh",
note = "Funding Information: We thank Andrea Crovetto and Mattias Lau N{\o}hr Palsgaard for helpful discussion. This project received funding from the European H2020 Framework Programme for research, technological development and demonstration under Grant Agreement No. 720907. See http://www.starcell.eu. Via our membership of the UK{\textquoteright}s HPC Materials Chemistry Consortium, which is funded by EPSRC (No. EP/L000202), this work used the ARCHER UK National Supercomputing Service (http://www.archer.ac.uk). We are grateful to the UK Materials and Molecular Modelling Hub for computational resources, which was partially funded by EPSRC (No. EP/ Publisher Copyright: {\textcopyright} 2018 Author(s).",
year = "2018",
month = nov,
day = "19",
doi = "10.1063/1.5063793",
language = "English",
volume = "113",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "21",
}