Journal
ACS ENERGY LETTERS
Volume 7, Issue 7, Pages 2273-2281Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.2c00707
Keywords
-
Categories
Funding
- European Union [850937, 840937]
- Federal ministry of energy and economics (CAPITANO) [03EE1038B]
- Helmholtz Association HYIG of U.W.P. [VH-NG-1148]
- Helmholtz Energy Materials Foundry (HEMF)
- Karlsruhe School of Optics and Photonics (KSOP)
- Helmholtz Association Program [38.01.03]
- Chinese Scholarship Council (CSC) [201808420221]
- Marie Curie Actions (MSCA) [840937] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
This study successfully fabricated high-efficiency perovskite/CIS tandem solar cells, showcasing the potential of monolithic two-terminal structure. By optimizing the techniques, a power conversion efficiency approaching 25% was achieved, setting the foundation for future improvements in efficiency.
Monolithic two-terminal (2T) perovskite/CuInSe2 (CIS) tandem solar cells (TSCs) combine the promise of an efficient tandem photovoltaic (PV) technology with the simplicity of an all-thin-film device architecture that is compatible with flexible and lightweight PV. In this work, we present the first-ever 2T perovskite/CIS TSC with a power conversion efficiency (PCE) approaching 25% (23.5% certified, area 0.5 cm(2)). The relatively planar surface profile and narrow band gap (similar to 1.03 eV) of our CIS bottom cell allow us to exploit the optoelectronic properties and photostability of a low-Br-containing perovskite top cell as revealed by advanced characterization techniques. Current matching was attained by proper tuning of the thickness and bandgap of the perovskite, along with the optimization of an antireflective coating for improved light in-coupling. Our study sets the baseline for fabricating efficient perovskite/CIS TSCs, paving the way for future developments that might push the efficiencies to over 30%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available