Results 141 to 150 of about 105,558 (310)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

Identification of binding mechanisms in single molecule-DNA complexes

open access: yes, 2003
Eckel R, Ros R, Ros A, Wilking SD, Sewald N, Anselmetti D. Identification of binding mechanisms in single molecule-DNA complexes. Biophysical journal. 2003;85(3):1968-1973.Changes in the elastic properties of single deoxyribonucleic acid (DNA) molecules ...
Anselmetti, Dario   +14 more
core   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Water distribution at solid/liquid interfaces visualized by frequency modulation atomic force microscopy

open access: yesScience and Technology of Advanced Materials, 2010
Interfacial phenomena at solid/water interfaces play an important role in a wide range of industrial technologies and biological processes. However, it has been a great challenge to directly probe the molecular-scale behavior of water at solid/water ...
Takeshi Fukuma
doaj  

High-speed atomic force microscopy: Structure and dynamics of single proteins This review comes from a themed issue on Analytical Techniques Edited

open access: yes, 2011
International audienceFor surface analysis of biological molecules, atomic force microscopy (AFM) is an appealing technique combining data acquisition under physiological conditions, for example buffer solution, room temperature and ambient pressure, and
Ignacio Casuso   +5 more
core   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Atomic force microscopy probing in the measurement of cell mechanics

open access: yesInternational Journal of Nanomedicine, 2010
Dimitrios Kirmizis, Stergios LogothetidisDepartment of Physics, Laboratory for Thin Films-Nanosystems and Nanometrology, Aristotle University, Thessaloniki, GreeceAbstract: Atomic force microscope (AFM) has been used incrementally over the last decade in
Dimitrios Kirmizis   +1 more
doaj  

Calibration of the torsional and lateral spring constants of cantilever sensors

open access: yes, 2014
Financial support from the EPSRC (EP/K000411/1) and the University of St. Andrews under an Impact Acceleration Account (EP/K503940/1) are gratefully acknowledged.A method suitable for the calibration of the spring constants of all torsional and lateral ...
Hähner, Georg, Parkin, John David
core   +1 more source

Unraveling MXene Oxidation Mechanisms Under Realistic Gas Environments by In Situ Gas‐Cell TEM

open access: yesAdvanced Functional Materials, EarlyView.
Real‐time visualization of MXene degradation reveals a fundamental oxidation mechanism under oxygen and moisture environments. Using in situ gas‐cell electron microscopy, this study demonstrates that oxygen degradation drives a thermodynamically controlled high‐temperature transformation into mixed rutile/anatase phases.
Yongfa Cheng   +8 more
wiley   +1 more source

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