Articles with "charge separation" as a keyword



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Internal-Field-Enhanced Charge Separation in a Single-Domain Ferroelectric PbTiO3 Photocatalyst.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.201906513

Abstract: Ferroelectric materials with spontaneous polarization-induced internal electric fields have drawn increasing attention in solar fuel production due to the intrinsic polarized structure. However, the origination of charge separation in these materials at the nano/microlevel is… read more here.

Keywords: field; charge; single domain; charge separation ... See more keywords
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Boosting Photocatalytic Water Oxidation on Photocatalysts with Ferroelectric Single Domains

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Published in 2023 at "Advanced Materials"

DOI: 10.1002/adma.202210374

Abstract: Ferroelectric materials are considered as promising photocatalysts due to their efficient charge separation via a polarization‐induced built‐in electric field. However, the polydomain structures hinder spatial charge separation and transfer due to the cancellation of polarization… read more here.

Keywords: charge separation; water oxidation; photocatalytic water; domain ... See more keywords
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Epitaxial CsPbBr3/CdS Janus Nanocrystal Heterostructures for Efficient Charge Separation

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202206560

Abstract: Epitaxial heterostructures of colloidal lead halide perovskite nanocrystals (NCs) with other semiconductors, especially the technologically important metal chalcogenides, can offer an unprecedented level of control in wavefunction design and exciton/charge carrier engineering. These NC heterostructures… read more here.

Keywords: cds janus; charge; cspbbr3 cds; charge separation ... See more keywords
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Enhancement of Charge Separation and NIR Light Harvesting through Construction of 2D–2D Bi4O5I2/BiOBr:Yb3+, Er3+ Z‐Scheme Heterojunctions for Improved Full‐Spectrum Photocatalytic Performance

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202207514

Abstract: Developing full‐spectrum photocatalysts with simultaneous broadband light absorption, excellent charge separation, and high redox capabilities is becoming increasingly significant. Herein, inspired by the similarities in crystalline structures and compositions, a unique 2D–2D Bi4O5I2/BiOBr:Yb3+,Er3+ (BI‐BYE) Z‐scheme… read more here.

Keywords: full spectrum; charge separation; yb3 er3; nir light ... See more keywords
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Graphene Dispersed Bi2WO6 Nanosheets with Promoted Interfacial Charge Separation for Visible Light Photocatalysis

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Published in 2019 at "ChemCatChem"

DOI: 10.1002/cctc.201901137

Abstract: Promoting photogenerated charge separation is the key and bottleneck step in photocatalysis, which mainly determines the efficiency of solar energy conversion. Reduced graphene oxide (rGO) has been emerging in the fields of physics, catalysis and… read more here.

Keywords: charge; charge separation; dispersed bi2wo6; interfacial charge ... See more keywords
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Highly Coupled Heterobicycle-Fused Porphyrin Dimers -Excitonic Coupling and Charge Separation with Coordinated Fullerene, C60.

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Published in 2023 at "ChemSusChem"

DOI: 10.1002/cssc.202202289

Abstract: Porphyrin dimers have been widely explored and studied owing to their importance in photosynthetic systems. A vast variety of dimers linked by different groups and at different angles have been synthesized and studied; however, the… read more here.

Keywords: charge separation; charge; porphyrin dimers; excitonic coupling ... See more keywords

Charge Separation in BaTiO3 Nanocrystals: Spontaneous Polarization Versus Point Defect Chemistry.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202206805

Abstract: The fate of photogenerated charges within ferroelectric metal oxides is key for photocatalytic applications. The authors study the contributions of i) tetragonal distortion, responsible for spontaneous polarization, and ii) point defects, on charge separation and… read more here.

Keywords: chemistry; spontaneous polarization; charge separation;
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A π-Conjugated Van der Waals Heterostructure Between Single-Atom Ni-Anchored Salphen-Based Covalent Organic Framework and Polymeric Carbon Nitride for High-Efficiency Interfacial Charge Separation.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202301017

Abstract: Semiconductor-based heterostructures have exhibited great promise as a photocatalyst to convert solar energy into sustainable chemical fuels, however, their solar-to-fuel efficiency is largely restricted by insufficient interfacial charge separation and limited catalytically active sites. Here… read more here.

Keywords: high efficiency; interfacial charge; charge separation;
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The study of conformational changes in photosystem II during a charge separation

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Published in 2020 at "Journal of Molecular Modeling"

DOI: 10.1007/s00894-020-4332-9

Abstract: Photosystem II (PSII) is a multi-subunit pigment-protein complex and is one of several protein assemblies that function cooperatively in photosynthesis in plants and cyanobacteria. As more structural data on PSII become available, new questions arise… read more here.

Keywords: charge; charge separation; changes photosystem; study conformational ... See more keywords
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Dynamics of diverse coherences in primary charge separation of bacterial reaction center at 77 K revealed by wavelet analysis.

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Published in 2021 at "Photosynthesis research"

DOI: 10.1007/s11120-021-00881-9

Abstract: To uncover the mechanism behind the high photo-electronic conversion efficiency in natural photosynthetic complexes it is essential to trace the dynamics of electronic and vibrational quantum coherences. Here we apply wavelet analysis to two-dimensional electronic… read more here.

Keywords: primary charge; wavelet analysis; charge; charge separation ... See more keywords
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Stability and charge separation of different CH3NH3SnI3/TiO2 interface: A first-principles study

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Published in 2018 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2018.02.038

Abstract: Abstract Interface has an important effect on charge separation of perovskite solar cells. Using first-principles calculations, we studied several different interfaces between CH3NH3SnI3 and TiO2. The interfacial structure and electronic structure of these interfaces are… read more here.

Keywords: ch3nh3sni3 tio2; charge separation; separation; interface ... See more keywords