Results 181 to 190 of about 7,750 (265)

Revealing Structure–Property Coupling During Thermal Conversion of Metal–Organic Frameworks

open access: yesSmall, EarlyView.
Multifrequency atomic force microscopy (AFM) combined with hybrid density functional theory (DFT) and complementary spectroscopic techniques uncovers transient nanoscale states during Cu‐BTC MOF conversion. Intermediate Cu2O/CuO‐carbon nanocomposites maximize mechanical robustness and functionality, while fully oxidized porous CuO enhances light ...
Gourav Bhattacharya   +8 more
wiley   +1 more source

Defect‐Healed Perovskite Quantum Dots for Optoelectronic Applications in Indoor Photovoltaics and Photoplethysmography

open access: yesSmall, EarlyView.
A novel dispersion‐phase defect‐healing strategy using Br‐doped PbS quantum dots (QDs) significantly stabilizes CsPbI3 perovskite (Pe) QDs by passivating internal vacancies. This approach reduces trap‐assisted nonradiative recombination, enabling high‐performance indoor photovoltaics with exceptional stability.
Seon Joong Kim   +9 more
wiley   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley  

+1 more source

More Photocatalysis With Less Light in Polar Semiconductors—The Role of Pyroelectric Fields

open access: yesSmall, EarlyView.
The work demonstrates that the modulated solar irradiation enhances the photocatalytic degradation of methyl orange on BaTiO3 despite reducing the photon flux by about 50%, resulting in a net overcompensation of catalytic efficiency. The effect arises from pyroelectric polarization near the phase transition, triggered by infrared heating of water ...
Balasurya Senthilmurugan   +6 more
wiley   +1 more source

Bioinspired STHVO based MPPT control for grid connected photovoltaic water pumping systems. [PDF]

open access: yesSci Rep
Ballouti A   +8 more
europepmc   +1 more source

Metal/Si Nanowire Arrays for Hot Electron Catalysis

open access: yesSmall, EarlyView.
Silicon nanowire arrays enhance plasmon‐driven catalysis by strengthening light–matter interactions on Au and Ag nanostructured coatings. Hotspot accessibility, rather than near‐field intensity alone, governs photocatalytic performance, while Ag nanoshells exhibit superior activity. The work establishes high‐surface‐area Si nanowire arrays as versatile
Theresa Bartschmid   +7 more
wiley   +1 more source

Two‐Stage Power Management for Triboelectric Nanogenerators: Toward Reliable and Efficient Self‐Powered Systems

open access: yesSafety Science and Technology, EarlyView.
This review systematically outlines two‐stage power management circuits for TENGs, integrating AC–DC and DC–DC conversion to overcome high impedance and unstable output. It highlights strategies for efficient energy extraction and stable power delivery, enabling the development of reliable self‐powered systems for safety monitoring and applications in ...
Jiaxin Hu   +5 more
wiley   +1 more source

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