Kesterite solar cells: insights into current strategies and challenges

M He, C Yan, J Li, MP Suryawanshi, J Kim… - Advanced …, 2021 - Wiley Online Library
Earth‐abundant and environmentally benign kesterite Cu2ZnSn (S, Se) 4 (CZTSSe) is a
promising alternative to its cousin chalcopyrite Cu (In, Ga)(S, Se) 2 (CIGS) for photovoltaic …

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)2 Solar Cell Absorbers

S Suresh, AR Uhl - Advanced Energy Materials, 2021 - Wiley Online Library
Photovoltaic technologies offer a sustainable solution to the challenge of meeting increasing
energy demands. Chalcopyrite Cu (In, Ga)(S, Se) 2, short CIGS—thin‐film solar cells …

Homomeric chains of intermolecular bonds scaffold octahedral germanium perovskites

A Morteza Najarian, F Dinic, H Chen, R Sabatini… - Nature, 2023 - nature.com
Perovskites with low ionic radii metal centres (for example, Ge perovskites) experience both
geometrical constraints and a gain in electronic energy through distortion; for these reasons …

High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency

J Keller, K Kiselman, O Donzel-Gargand, NM Martin… - Nature Energy, 2024 - nature.com
Chalcopyrite-based solar cells have reached an efficiency of 23.35%, yet further
improvements have been challenging. Here we present a 23.64% certified efficiency for a …

Controllable Formation of Ordered Vacancy Compound for High Efficiency Solution Processed Cu(In,Ga)Se2 Solar Cells

Y Zhao, S Yuan, Q Chang, Z Zhou… - Advanced Functional …, 2021 - Wiley Online Library
Abstract Solution processing of Cu (In, Ga) Se2 (CIGS) absorber makes it cost‐competitive
in the photovoltaic market. It is reported that copper‐poor ordered vacancy compound (OVC) …

Microscopic origins of performance losses in highly efficient Cu(In,Ga)Se2 thin-film solar cells

M Krause, A Nikolaeva, M Maiberg, P Jackson… - Nature …, 2020 - nature.com
Thin-film solar cells based on polycrystalline absorbers have reached very high conversion
efficiencies of up to 23-25%. In order to elucidate the limiting factors that need to be …

[HTML][HTML] Advances in CIGS thin film solar cells with emphasis on the alkali element post-deposition treatment

C Zhao, S Yu, W Tang, X Yuan, H Zhou, T Qi… - Materials Reports …, 2023 - Elsevier
In the past tens of years, the power conversion efficiency of Cu (In, Ga) Se 2 (CIGS) has
continuously improved and been one of the fastest growing photovoltaic technologies that …

How photoluminescence can predict the efficiency of solar cells

S Siebentritt, TP Weiss, M Sood… - Journal of Physics …, 2021 - iopscience.iop.org
The efficiency of solar cells depends on the photocurrent, on the open circuit voltage and on
the fill factor, which in turn depends on the diode factor. We review how photoluminescence …

Over 15% efficient wide-band-gap Cu (In, Ga) S2 solar cell: Suppressing bulk and interface recombination through composition engineering

S Shukla, M Sood, D Adeleye, S Peedle, G Kusch… - Joule, 2021 - cell.com
Summary The progress of Cu (In, Ga) S 2 remains significantly limited mainly due to
photovoltage (V oc) losses in the bulk and at the interfaces. Here, via a combination of …

Energy Band Alignment and Defect Synergistic Regulation Enable Air‐Solution‐Processed Kesterite Solar Cells With the Lowest VOC Deficit

Y Zhao, X Chen, S Chen, Z Zheng, Z Su… - Advanced …, 2024 - Wiley Online Library
The major challenge in preparing high‐performance Cu2ZnSn (S, Se) 4 solar cells is the
large open circuit voltage deficit (VOC‐def). A new strategy utilizing the synergistic …