Strain-induced orders-of-magnitude reduction of hopping conductivity in epitaxial SrTiO3 films

APL Materials, Journal Year: 2025, Volume and Issue: 13(3)

Published: March 1, 2025

Rational control of the electronic properties, including charge transport, is essential for nearly all applications ABO3 ferroelectrics. Whereas such critical advanced devices using thin epitaxial films, effects epitaxy on electrical conductivity are not fully acknowledged. Here, an unprecedented orders-of-magnitude decrease in with increasing substrate-induced strain to less than 1% demonstrated films pure archetypal representative perovskite SrTiO3 as well (Mn, Fe, Co, Ni)-doped SrTiO3. The effect analyzed terms small-polaron localization and hopping. experimental evidence hopping theoretical justification strain-induced fall mobility presented. discovered massive suppression anticipated many general.

Language: Английский

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BiFeO₃ as a Next‐Generation Photocatalyst: Bridging Material Design with Environmental Remediation

ChemPhysChem, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Bismuth ferrite (BiFeO₃) is a multiferroic perovskite material with narrow band gap (~2.1 eV), demonstrating significant potential as photocatalyst for environmental remediation and sustainable energy applications. Its photocatalytic capabilities include dye degradation, air purification, wastewater treatment, hydrogen generation, all driven by its ability to harness visible light. This review critically examines the factors influencing performance of BiFeO₃ (BFO) doped derivatives. Advances in synthesis techniques, such sol-gel, hydrothermal, combustion methods, are discussed concerning particle size, crystallinity, surface modifications. Key strategies, including rare earth element doping, heterostructure formation, co-catalyst integration, explored their role enhancing charge separation light absorption, achieving efficiency improvements over 90 % some cases. The mechanistic pathways photocatalysis, focus on electron-hole dynamics radical analyzed provide deeper insights into performance. Despite potential, challenges limited stability rapid recombination rates persist. identifies critical research gaps proposes directions optimizing BFO's design scalability, reinforcing relevance next-generation addressing global challenges.

Language: Английский

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Al-N co-doped to reduce Ti3+ concentration to suppress charge recombination of polyhedral SrTiO3 for efficient photocatalytic CO2 reduction

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 689, P. 137266 - 137266

Published: March 8, 2025

Language: Английский

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Photocatalytic NaNbO₃ crystals in 60B₂O₃–30Na₂O–10Nb₂O₅ glass for dye degradation

International Journal of Applied Glass Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract NaNbO 3 crystals were fabricated in the 60B 2 O –30Na O–10Nb 5 glass system. The fabrication of parent was done via melt quench technique, and then crystallization achieved through controlled heat treatment. formation crystallites successfully observed confirmed using X‐ray diffraction Raman spectroscopy. elemental analysis present constituent glass‐ceramics performed photoemission morphological characteristics investigated field emission scanning electron microscopy (FE‐SEM). transparency samples evaluated by UV–vis spectroscopy, it has been established that transparent even after partial crystallization. Prepared used to degrade methylene blue dye photocatalysis. emergence as a photocatalyst with degradation rate 68% 240 min constant 4.5 × 10 −1 .

Language: Английский

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Rationalize to intensify the charge transfer from rutile to anatase via plasmon electrons induction for photocatalytic H2 evolution

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 120, P. 33 - 43

Published: March 24, 2025

Language: Английский

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