Metal Phosphorus Chalcogenide Nanosheet-Modified SnO2 Electron Transport Layers for Efficient Perovskite Solar Cells

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43931587" target="_blank" >RIV/60461373:22310/25:43931587 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsami.5c02547" target="_blank" >https://pubs.acs.org/doi/10.1021/acsami.5c02547</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.5c02547" target="_blank" >10.1021/acsami.5c02547</a>

Result language
angličtina
Original language name
Metal Phosphorus Chalcogenide Nanosheet-Modified SnO2 Electron Transport Layers for Efficient Perovskite Solar Cells
Original language description
The electron transport layer (ETL) of tin dioxide (SnO2) plays a pivotal role in n-i-p perovskite solar cells (PSCs) by facilitating the extraction of photogenerated electrons and blocking the transport of holes. However, the presence of oxygen vacancies in SnO2 adversely affects the quality of the ETLs and impairs the electron transport properties, reducing the performance of PSCs. Here, we present a novel interfacial engineering route by incorporating an exfoliated two-dimensional (2D) metal-phosphorus-chalcogen complex of the SnPS3 nanosheets into the SnO2 ETL. The sulfur atoms in the SnPS3 nanosheets fill the oxygen vacancies in SnO2, reducing the trap state density. Meanwhile, the SnPS3-modified SnO2 layer exhibits an improved energy level alignment and enhanced electrical conductivity. As a result, a remarkable efficiency improvement from 21.51 to 23.01% was observed, accompanied by optimized stability. These results expand the application scenarios of 2D metal-phosphorus-chalcogen complexes and provide a novel approach to tune SnO2-based interfaces for PSCs.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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