Interdot Lead Halide Excess Management in PbS Quantum Dot Solar Cells

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Abstract: Light‐harvesting devices made from lead sulfide quantum dot (QD) absorbers are one of the many promising technologies of third‐generation photovoltaics. Their simple, solution‐based fabrication, together with a highly tunable and broad light absorption makes their application in newly developed solar cells, particularly promising. In order to yield devices with reduced voltage and current losses, PbS QDs need to have strategically passivated surfaces, most commonly achieved through lead iodide and bromide passivation. The interdot spacing is then predominantly filled with residual amorphous lead halide species that remain from the ligand exchange, thus hindering efficient charge transport and reducing device stability. Herein, it is demonstrated that a post‐treatment by iodide‐based 2‐phenylethlyammonium salts and intermediate 2D perovskite formation can be used to manage the lead halide excess in the PbS QD active layer. This treatment results in improved device performance and increased shelf‐life stability, demonstrating the importance of interdot spacing management in PbS QD photovoltaics.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Interdot Lead Halide Excess Management in PbS Quantum Dot Solar Cells ; day:03 ; month:10 ; year:2022 ; extent:10
Advanced energy materials ; (03.10.2022) (gesamt 10)

Creator: Albaladejo‐Siguan, Miguel
Becker‐Koch, David
Baird, Elizabeth C.
Hofstetter, Yvonne J.
Carwithen, Ben P.
Kirch, Anton
Reineke, Sebastian
Bakulin, Artem A.
Paulus, Fabian
Vaynzof, Yana

DOI: 10.1002/aenm.202202994

URN: urn:nbn:de:101:1-2022100315065900515687

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:22 AM CEST

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Associated

Albaladejo‐Siguan, Miguel
Becker‐Koch, David
Baird, Elizabeth C.
Hofstetter, Yvonne J.
Carwithen, Ben P.
Kirch, Anton
Reineke, Sebastian
Bakulin, Artem A.
Paulus, Fabian
Vaynzof, Yana

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Stable PbS colloidal quantum dot inks enable blade-coating infrared solar cells

Impact of Ligands on the Performance of PbS Quantum Dot Visible – Near - Infrared Photodetectors

Impact of Ligands on the Performance of PbS Quantum Dot Visible – Near - Infrared Photodetectors

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Improving the Performance of PbS Quantum Dot Solar Cells by Optimizing ZnO Window Layer

Improving the Performance of PbS Quantum Dot Solar Cells by Optimizing ZnO Window Layer

Predicting PbS Colloidal Quantum Dot Solar Cell Parameters Using Neural Networks Trained on Experimental Data

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Solid‐State Ligand‐Exchange Fabrication of CH 3 NH 3 PbI 3 Capped PbS Quantum Dot Solar Cells

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Interdot Lead Halide Excess Management in PbS Quantum Dot Solar Cells

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Single PbS colloidal quantum dot transistors

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Interfacial Heterojunction Enables High Efficient PbS Quantum Dot Solar Cells

Interfacial Heterojunction Enables High Efficient PbS Quantum Dot Solar Cells

Broadband Optical Amplification of PbS Quantum‐Dot‐Doped Glass Fibers

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Opto-electronics of PbS quantum dot and narrow bandgap polymer blends

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Degradation mechanisms in PbS and AgBiS₂ quantum dot photovoltaic devices

Hochschulschrift

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Stable PbS colloidal quantum dot inks enable blade-coating infrared solar cells

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Impact of Ligands on the Performance of PbS Quantum Dot Visible – Near - Infrared Photodetectors

Impact of Ligands on the Performance of PbS Quantum Dot Visible – Near - Infrared Photodetectors

Impact of Ligands on the Performance of PbS Quantum Dot Visible–Near‐Infrared Photodetectors

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Improving the Performance of PbS Quantum Dot Solar Cells by Optimizing ZnO Window Layer

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Predicting PbS Colloidal Quantum Dot Solar Cell Parameters Using Neural Networks Trained on Experimental Data

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Solid‐State Ligand‐Exchange Fabrication of CH 3 NH 3 PbI 3 Capped PbS Quantum Dot Solar Cells

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