Rapid Room Temperature Entropy‐Stabilized Synthesis Enabling Super‐Stable Metal Halide Perovskite Semiconductor Colloidal Nanocrystals

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

Published: Jan. 12, 2025

Abstract Although high‐entropy materials have garnered extensive attention due to their substantially enhanced performance, formation generally demands prolonged high‐temperature synthetic processes. Moreover, research on entropy‐stabilized halide perovskite (ESHP) semiconductor colloidal nanocrystals (NCs) is scarce. Herein, a highly efficient and rapid room temperature (RT) approach in air proposed, involving the concurrent incorporation of multi‐metal cations for synthesis high‐quality all‐inorganic ESHP NCs with near‐unity quantum yield excellent stability. Remarkably, even after 8 months aging air, exhibited superior emission characteristics single‐exponential decay maintained initial NC monodispersity. Density functional theory calculations further demonstrated that outstanding performance originated from diminished crystal defects more robust octahedral structure. Significantly, this RT entropy‐driven can be extended metal diverse composition systems. The findings inspire new perspectives entropy‐stabilized, high‐performance toward versatile applications.

Language: Английский

---

Slot‐Die Coating Deposition Method in High‐Performance Perovskite Solar Modules

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Perovskite solar cells (PSCs) have gained significant attention due to their high efficiency and potential for low‐cost production. The upscaling of PSCs is key its final large‐scale commercial deployment. In recent several years, considerable advancements been obtained on large‐area perovskite modules (PSMs). Several deposition methods employed fabricate PSMs, mainly including spin‐coating, doctor‐blading, slot‐die coating, meniscus printing, screen vacuum deposition. Among them, coating technique plays a critical role in preparing high‐efficiency which most widely adopted until now. this review, the fundamentals important parameters application PSMs are first introduced. Then, challenges corresponding solutions discussed. Finally, some development directions issues presented advance photovoltaic devices toward practical application.

Language: Английский

---

High‐Speed Slot‐Die Coating with Donor‐Priority Rapid Aggregation Kinetics for Improved Morphology and Efficiency in Ecofriendly Organic Solar Cells

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 26, 2025

Abstract Solution‐processable organic solar cells (OSCs) represent a promising renewable photovoltaic technology with significant potential for eco‐compatible production. While high power conversion efficiencies (PCEs) have been achieved in OSCs, scaling this high‐throughput manufacturing remains challenging. Key reason lies the lack of efficient control strategies complex and long‐duration morphology evolution during high‐speed coating process ecofriendly solvents. Here, donor‐priority rapid aggregation (DP‐RAP) scheme is proposed to solve issue by adjusting kinetics donor acceptor components. DP‐RAP enables blends nanoscale fiber network structure favorable crystallinity, which contributes balanced carrier transport reduced recombination losses. As result, PCE improved from 14.3% (reference) 17.4% ultra‐high speed coated PM6:BTP‐eC9 devices atmosphere, one highest values non‐halogenated solvent‐processed at speeds 500 mm s −1 . Moreover, based remain stable approximately across broad range (20–500 ), illustrating its tolerance varied conditions. This work highlights avenue high‐speed, production pushing boundaries practical energy technologies.

Language: Английский

---

Improvement of the perovskite photodiodes performance via advanced interface engineering with polymer dielectric

Deleted Journal, Journal Year: 2025, Volume and Issue: 6(1), P. 1 - 1

Published: Jan. 1, 2025

Language: Английский

---