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Acoustic Modulation of Excitonic Complexes in hBN/WSe/hBN Heterostructures.
Nano Lett
December 2024
Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, 13083-859 Campinas, Brazil.
The interaction of high-frequency surface acoustic waves (SAWs) and excitons in van der Waals heterostructures (vdWHs) offers challenging opportunities to explore novel quantum effects and functionalities. We probe the interaction of neutral excitons, trions, and biexcitons with SAWs in a hBN/WSe/hBN vdWH. We show that neutral excitons respond weakly to the SAW stimulus at 5 K.
View Article and Find Full Text PDFConstruction of Dual Electric Field Synergistic and Magnetic Recyclable SnFeO/ZnO Photocatalyst.
Inorg Chem
November 2024
State Key Laboratory of Organic Electronics and Information, Displays and Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China.
The recombination of photoinduced carriers hampers the photocatalysis process. Construction of the heterojunction and built-in piezoelectric field boosts the separation of electrons and holes. Herein, a novel magnetic recyclable SnFeO(SFO)/ZnO composite with enhanced photocatalytic performance based on the dual electric field synergism was proposed for the first time.
View Article and Find Full Text PDFEnhanced visible light responsive piezoelectric photocatalysis based on BiS coated BaTiO nanorods heterostructures.
J Colloid Interface Sci
January 2025
Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering, Innovation Center for Textile Science and Technology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, China. Electronic address:
Although the presence of the built-in electric field will solve the problem of carrier complexation in photocatalytic systems to some extent. However, free carriers will quickly shield the stabilized electric field and lose its effect. Therefore, how to introduce the dynamic piezoelectric field into the photocatalytic system has become an imminent problem.
View Article and Find Full Text PDFRecent Advances in Piezoelectric Coupled with Photocatalytic Reaction System: Synergistic Mechanism, Enhancement Factors, and Application.
ACS Appl Mater Interfaces
September 2024
College of Resources, Hunan Agricultural University, Changsha 410128, China.
Article Synopsis
- * Introducing external fields, particularly piezoelectric fields, can enhance photocatalytic processes by overcoming the shortcomings of conventional systems, leading to improved stability, pollutant degradation, and energy conversion.
- * This review discusses recent advancements in piezoelectric-assisted photocatalysis, explores the interaction between piezoelectric fields and photocatalysis, and analyzes the challenges and future potential of this innovative technology.
Fluid-Induced Piezoelectric Field Enhancing Photo-Assisted Zn-Air Batteries Based on a Fe@P(V-T) Microhelical Cathode.
Adv Mater
November 2024
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Photo-assisted Zn-air batteries can accelerate the kinetics of oxygen reduction and oxygen evolution reactions (ORR/OER); however, challenges such as rapid charge carrier recombination and continuous electrolyte evaporation remain. Herein, for the first time, piezoelectric catalysis is introduced in a photo-assisted Zn-air battery to improve carrier separation capability and accelerate the ORR/OER kinetics of the photoelectric cathode. The designed microhelical catalyst exploits simple harmonic vibrations to regenerate the built-in electric field continuously.
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