Single-source pulsed laser-deposited perovskite solar cells with enhanced performance via bulk and 2D passivation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00604137" target="_blank" >RIV/68378271:_____/24:00604137 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.joule.2024.09.001" target="_blank" >https://doi.org/10.1016/j.joule.2024.09.001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.joule.2024.09.001" target="_blank" >10.1016/j.joule.2024.09.001</a>

Result language
angličtina
Original language name
Single-source pulsed laser-deposited perovskite solar cells with enhanced performance via bulk and 2D passivation
Original language description
Single-source vapor deposition of halide perovskites has remained challenging due to the dissimilar volatilities of the precursors, limiting the controlled transfer of multiple elements at once. Here, we demonstrate that pulsed laser deposition (PLD) addresses the rate-control challenges of single-source evaporation, enabling perovskite solar cells with power conversion efficiencies above 19% after passivation. Combining dry mechanochemical synthesis and PLD, we fabricated (Cl-passivated) MA1−xFAxPbI3 films from a single-source target. These films grow on hole-selective self-assembled monolayers, initially forming a thin PbI2-rich layer, which fully converts to perovskite. An oleylammonium iodide (OAmI) post-treatment is then applied to passivate the perovskite’s top surface by forming a 2D perovskite film. Incorporating PbCl2 in the target and applying OAmI-based 2D passivation results in a remarkable 19.7% efficiency for p-i-n perovskite solar cells with enhanced device stability. This highlights the appeal of PLD to fully unlock the potential of single-source vapor-deposited perovskites.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/LUASK22202" target="_blank" >LUASK22202: Superior Perovskite-based devices by Optimized Passivation and Structure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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