693.932 PEOPLE
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| Naji, M. |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Siebentritt, Susanne
University of Luxembourg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Improved sequentially processed Cu(In,Ga)(S,Se)2 by Ag alloying
- 2024Composition dependence of electronic defects in CuGaS2citations
- 2024Improved Sequentially Processed Cu(In,Ga)(S,Se)<sub>2</sub> by Ag Alloying
- 2023Chalcopyrite solar cells —state-of-the-art and options for improvementcitations
- 2023On the Origin of Tail States and Open Circuit Voltage Losses in Cu(In,Ga)Se2citations
- 2023Post‐deposition annealing and interfacial atomic layer deposition buffer layers of Sb<sub>2</sub>Se<sub>3</sub>/CdS stacks for reduced interface recombination and increased open‐circuit voltagescitations
- 2023CuIn(Se,Te)2 absorbers with bandgaps <1 eV for bottom cells in tandem applications
- 2022Low temperature (Zn,Sn)O deposition for reducing interface open-circuit voltage deficit to achieve highly efficient Se-free Cu(In,Ga)S2 solar cellscitations
- 2022How much gallium do we need for a p-type Cu(In,Ga)Se<sub>2</sub>?citations
- 2021Passivating Surface Defects and Reducing Interface Recombination in CuInS<sub>2</sub> Solar Cells by a Facile Solution Treatmentcitations
- 2021The impact of Kelvin probe force microscopy operation modes and environment on grain boundary band bending in perovskite and Cu(In,Ga)Se2 solar cellscitations
- 2020Oxidation as Key Mechanism for Efficient Interface Passivation in Cu (In,Ga)Se2 Thin-Film Solar Cells
- 2020Ultra-thin passivation layers in Cu(In,Ga)Se2 thin-film solar cells: full-area passivated front contacts and their impact on bulk doping
- 2016Cu–Zn disorder and band gap fluctuations in Cu2ZnSn(S,Se)4 : Theoretical and experimental investigationscitations
- 2015Epitaxial Cu2ZnSnSe4 thin films and devicescitations
- 2014Single second laser annealed CuInSe2 semiconductors from electrodeposited precursors as absorber layers for solar cellscitations
- 2012Thin film solar cells based on the ternary compound Cu2SnS3citations
- 2008Photoluminescence and Raman spectra of the ordered vacancy compound CuGa5Se8citations
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article
Improved sequentially processed Cu(In,Ga)(S,Se)2 by Ag alloying
Abstract
Alloying small quantities of silver into Cu(In,Ga)Se2 was shown to improve the efficiency for wide and low band gap solar cells. We study low band gap industrial Cu(In,Ga)(S,Se)2 absorbers, substituting less than 10% of the copper with silver, using absolute photoluminescence and cathodoluminescence spectroscopy. Silver improves the grain size and promotes the interdiffusion of Ga and In across the depth of the absorber, resulting in a smoother band gap gradient. However, a certain lateral inhomogeneity is observed near the front and back sides. The non-radiative losses in the bare absorbers are reduced by up to 30 meV.