From Sunlight to Solutions: Closing the Loop on Halide Perovskites DOI Creative Commons
Elham Foadian, Sheryl L. Sanchez, Sergei V. Kalinin

et al.

ACS Materials Au, Journal Year: 2024, Volume and Issue: 5(1), P. 11 - 23

Published: Oct. 25, 2024

Halide perovskites (HPs) are emerging as key materials in the fight against global warming with well recognized applications, such photovoltaics, and emergent opportunities, photocatalysis for methane removal environmental remediation. These current applications enabled by a unique combination of high absorption coefficients, tunable band gaps, long carrier diffusion lengths, making them highly efficient solar energy conversion. To address challenge discovery optimization HPs huge chemical compositional spaces possible candidates, this perspective discusses comprehensive strategy screening through automated high-throughput combinatorial synthesis techniques. A critical aspect approach is closing characterization loop, where machine learning (ML) human collaboration play pivotal roles. By leveraging creativity domain knowledge hypothesis generation employing ML to test refine these hypotheses efficiently, we aim accelerate under specific conditions. This synergy enables rapid identification most promising materials, advancing from fundamental scalable manufacturability. Our ultimate goal work transition laboratory-scale innovations real-world ensuring that can be deployed effectively technologies mitigate warming, harvesting systems.

Language: Английский

Ligand-induced self-assembly of twisted two-dimensional halide perovskites DOI
Jonghee Yang, Addis Fuhr,

Subeom Shin

et al.

Nature Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Language: Английский

Citations

1
Impact of Halogen Groups on the Properties of PEA‐Based 2D Pb–Sn Halide Perovskites DOI Open Access
Elham Foadian, Sheryl L. Sanchez, Sumner B. Harris

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Abstract Tuning broad emission in 2D Pb–Sn halide perovskites (HPs) is essential for advancing optoelectronic applications, particularly color‐tunable and white‐light‐emitting devices. This linked to structural factors, such as defects phase segregation of the Pb component within system, which are strongly influenced by molecular structure chemical properties spacer cations. Atomic tuning spacers via halogenation opens up a new way fine‐tune properties, enabling further augmentations HP functionalities. Nevertheless, distinct emission's sensitivity chemistry remains underexplored. Here, halogenation's influence systematically investigated on characteristics using high‐throughput workflow. These findings reveal that F‐containing phenethylammonium (4F‐PEA) narrows broadband PL, whereas Cl broadens it. Through correlative study, it found 4F‐PEA reduces not only local but also defect levels microstrains HPs. likely attributed manifestation less lattice distortion stronger surface coordination dipole‐augmented 4F‐PEA. results highlight key factor modulating density HPs, offering promising pathway tune enhanced performance.

Language: Английский

Citations

0
Quasi‐2D Sn‐Pb Perovskites: Advances in Optoelectronic Engineering and Device Applications DOI

Peiwen Gu,

Ting Zhang,

Sihui Peng

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Tin‐lead (Sn‐Pb) mixed perovskites are promising candidates for single‐junction and tandem photovoltaic devices due to their tunable bandgap, enabling efficient light absorption. However, the advancement of these materials is impeded by significant challenges, particularly poor quality films resulting from facile oxidation Sn 2+ 4+ inherent difficulties in controlling crystallization kinetics. To mitigate issues, design low‐dimensional (LD) Sn‐Pb has gained considerable attention, as 2D structures associated with improved stability distinctive optoelectronic properties. This review systematically investigates characteristics arising dimensional reduction while elucidating intricate relationship between microstructure behavior. Additionally, substantial progress made applying within heterojunction perovskite solar cells (PSCs) highlighted. Emerging applications fields such near‐infrared (NIR) detection, circularly polarized memristors also discussed. Given current understanding, further exploration diverse ligands compositions systems crucial realizing full potential practical applications.

Language: Английский

Citations

0
Tailoring Molecular Space to Navigate Phase Complexity in Cs‐Based Quasi‐2D Perovskites via Gated‐Gaussian‐Driven High‐Throughput Discovery DOI Open Access

Minsub Um,

Sheryl L. Sanchez,

Hochan Song

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Abstract Cesium‐based quasi‐2D halide perovskites (HPs) offer promising functionalities and low‐temperature manufacturability, suited to stable tandem photovoltaics. However, the chemical interplays between molecular spacers inorganic building blocks during crystallization cause substantial phase complexities in resulting matrices. To successfully optimize implement HP functionalities, a systematic understanding of spacer chemistry, along with seamless navigation inherently discrete space, is necessary. Herein, by utilizing high‐throughput automated experimentation, space HPs are explored, thus identifying roles cations on synthesis complex materials. Furthermore, novel active machine learning algorithm leveraging two‐stage decision‐making process, called gated Gaussian process Bayesian optimization introduced, navigate ternary defined two distinctive molecules. Through simultaneous photoluminescence intensity stability that “tailors” chemistry ternary‐compositional film realizing excellent optoelectronic demonstrated. This work not only provides pathway for rational bespoke design materials but also sets stage accelerated discovery other multifunctional systems.

Language: Английский

Citations

1
From Sunlight to Solutions: Closing the Loop on Halide Perovskites DOI Creative Commons
Elham Foadian, Sheryl L. Sanchez, Sergei V. Kalinin

et al.

ACS Materials Au, Journal Year: 2024, Volume and Issue: 5(1), P. 11 - 23

Published: Oct. 25, 2024

Halide perovskites (HPs) are emerging as key materials in the fight against global warming with well recognized applications, such photovoltaics, and emergent opportunities, photocatalysis for methane removal environmental remediation. These current applications enabled by a unique combination of high absorption coefficients, tunable band gaps, long carrier diffusion lengths, making them highly efficient solar energy conversion. To address challenge discovery optimization HPs huge chemical compositional spaces possible candidates, this perspective discusses comprehensive strategy screening through automated high-throughput combinatorial synthesis techniques. A critical aspect approach is closing characterization loop, where machine learning (ML) human collaboration play pivotal roles. By leveraging creativity domain knowledge hypothesis generation employing ML to test refine these hypotheses efficiently, we aim accelerate under specific conditions. This synergy enables rapid identification most promising materials, advancing from fundamental scalable manufacturability. Our ultimate goal work transition laboratory-scale innovations real-world ensuring that can be deployed effectively technologies mitigate warming, harvesting systems.

Language: Английский

Citations

0