A5059263875- Force Microscopy Techniques and Applications
- Metal and Thin Film Mechanics
- Minerals Flotation and Separation Techniques
- Alzheimer's disease research and treatments
- Calcium Carbonate Crystallization and Inhibition
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Diamond and Carbon-based Materials Research
- Adhesion, Friction, and Surface Interactions
- Surface Roughness and Optical Measurements
- Fusion materials and technologies
- Supramolecular Self-Assembly in Materials
- Ion-surface interactions and analysis
- Cellular Mechanics and Interactions
- Mineral Processing and Grinding
- Electronic and Structural Properties of Oxides
- Protein Structure and Dynamics
- Theoretical and Computational Physics
- Lipid Membrane Structure and Behavior
- Cell Adhesion Molecules Research
- Graphene research and applications
- Advanced Sensor and Energy Harvesting Materials
- Metallurgical Processes and Thermodynamics
- Magnesium Alloys: Properties and Applications
- Tribology and Lubrication Engineering
Luleå University of Technology
2004-2025
Materials Science & Engineering
2021
University of California, Santa Barbara
1997-2004
University of Rochester
1999
KTH Royal Institute of Technology
1994
We present experimental support for a model of abalone nacre growth that is based on mineral bridges between successive aragonite tablets rather than heteroepitaxial nucleation. Interlamellar sheets organic polymers delineate the but allow to grow through pores in sheets. Atomic force microscope images interlamellar from flat pearls made by Haliotis rufescens (red abalone; marine gastropod mollusk) reveal fibrous core and holes 5−50 nm diameter. Scanning ion conductance microscopy shows...
Self-powered photodetectors operating in the UV-visible-NIR window made of environmentally friendly, earth abundant, and cheap materials are appealing systems to exploit natural solar radiation without external power sources. In this study, we propose a new p-n junction nanostructure, based on ZnO-Co3O4 core-shell nanowire (NW) system, with suitable electronic band structure improved light absorption, charge transport, collection, build an efficient heterojunction photodetector. Ultrathin...
Transparent nanoscale-film heterojunctions based on Cu2O and ZnO were fabricated by atomic layer deposition reactive magnetron sputtering. The constitutive layers exhibit high crystalline quality a local epitaxial relation between was achieved with [110] || [001] [010] as evidenced resolution transmission electron microscopy and. films show very low resistivity mobility values of 9–150 Ω cm 19 cm2/V s, respectively. Cu2O/ZnO nonlinear rectifying behavior characteristic p–n junction,...
The mechanisms behind natural nanofabrication of highly structured silicas are increasingly being investigated. We have explored the use a standard Nanoscope III Multimode atomic force microscope (AFM) to study silica shell diatoms. delicate structures surface diatom Navicula pelliculosa (Bréb.) Hilse were imaged and shell's micromechanical properties measured semi‐quantitatively with resolution down approximately 10 nm. technique measure elasticity hardness AFM was demonstrated be useable...
Lithium-containing magnesium alloys are promising materials for high-demanding industrial applications. In the present contribution, three different AZ31 AZ31-xLi (x = 4, 8, and 12 wt.%) were cast their corrosion processes examined in 0.05 M NaCl solution utilizing potassium permanganate as a potential inhibitor. The microstructure of was analyzed by scanning electron microscopy. Scanning Kelvin probe force microscopy demonstrated high susceptibility to localized attack. Electrochemical...
Plasmonic Cu nanoparticles (NP) were successfully deposited on ZnO substrates by atomic layer deposition (ALD) owing to the Volmer-Weber island growth mode. An evolution from NP continuous films was observed with an increasing number of ALD cycles. Real and imaginary parts dielectric functions, determined spectroscopic ellipsometry using effective medium approach, evidence a localized surface plasmon resonance that can be tuned between visible near-infrared ranges controlling interparticle...
The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 1:11 molar ratios was investigated using electrochemical atomic force microscopy (AFM) techniques. Faster corrosion rate measured for than Ti-6Al-2Sn-4Zr-2Mo, whereas solution exhibited higher rate. Scanning Kelvin probe measurements revealed difference the Volta potential between α-laths β-layers Widmansttaten microstructure indicating operation...
Area-selective atomic layer deposition (AS-ALD) has attracted much attention in recent years due to the possibility of achieving accurate patterns nanoscale features, which render this technique compatible with continuous downscaling nanoelectronic devices. The growth selectivity is achieved by starting from different materials and results (ideally) localized a single material. We propose here new concept, more subtle general, property substrate modulated achieve materials. This concept...
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionDoes Abalone Nacre Form by Heteroepitaxial Nucleation or Growth through Mineral Bridges?Tilman E. Schäffer, Cristian Ionescu-Zanetti, Roger Proksch, Monika Fritz, Deron A. Walters, Nils Almqvist, Charlotte M. Zaremba, Angela Belcher, Bettye L. Smith, Galen D. Stucky, Daniel Morse, and Paul K. HansmaCite this: Chem. Mater. 1998, 10, 3, 946Publication Date (Web):January 14, 1998Publication History Published online14 January 1998Published...
Dispersion and aggregation of nanomagnetite (Fe3O4) silica (SiO2) particles are high importance in various applications, such as biomedicine, nanoelectronics, drug delivery, flotation, pelletization iron ore. In directly probing nanomagnetite–silica interaction, atomic force microscopy (AFM) using the colloidal probe technique has proven to be a suitable tool. this work, interaction between was measured with AFM aqueous Ca2+ solution at different pH levels. This study showed that qualitative...