How to report record open-circuit voltages in lead-halide perovskite solar cells
- Open-circuit voltages of lead-halide perovskite solar cells are improving rapidly and are approaching the thermodynamic limit. Since many different perovskite compositions with different bandgap energies are actively being investigated, it is not straightforward to compare the open-circuit voltages between these devices as long as a consistent method of referencing is missing. For the purpose of comparing open-circuit voltages and identifying outstanding values, it is imperative to use a unique, generally accepted way of calculating the thermodynamic limit, which is currently not the case. Here a meta-analysis of methods to determine the bandgap and a radiative limit for open-circuit voltage is presented. The differences between the methods are analyzed and an easily applicable approach based on the solar cell quantum efficiency as a general reference is proposed.
Author details: | Lisa KrückemeierORCiD, Uwe RauORCiD, Martin StolterfohtORCiDGND, Thomas KirchartzORCiD |
---|---|
DOI: | https://doi.org/10.1002/aenm.201902573 |
ISSN: | 1614-6832 |
ISSN: | 1614-6840 |
Title of parent work (English): | Advanced energy materials |
Publisher: | Wiley-VCH |
Place of publishing: | Weinheim |
Publication type: | Article |
Language: | English |
Date of first publication: | 2019/11/11 |
Publication year: | 2019 |
Release date: | 2021/06/03 |
Tag: | Shockley-Queisser model; bandgap; fill factor losses; nonradiative voltage losses; photovoltaics; radiative limit; recombination |
Volume: | 10 |
Issue: | 1 |
Article number: | 1902573 |
Number of pages: | 11 |
Funding institution: | Helmholtz AssociationHelmholtz Association |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |
Publishing method: | Open Access / Hybrid Open-Access |
License (German): | CC-BY - Namensnennung 4.0 International |
External remark: | Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 1194 |