Publications de Emad Oveisi | EPFL Graph Search

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Deriving accurate three-dimensional (3-D) structural information of materials at the nanometre level is often crucial for understanding their properties. Tomography in transmission electron microscopy (TEM) is a powerful technique that provides such inform ...

Pyrene-based metal-organic frameworks (MOFs) have tremendous potential for various applications. With infinite structural possibilities, the MOF community often relies on simulations to identify the most promising candidates for given applications. Among t ...

Tin oxide is an excellent candidate to replace mesoporous TiO2 electron transport layers (ETLs) in perovskite solar cells. Here, we introduced a SnO2 layer by a low-temperature solution process, and investigated its morphology, opto-physical and electrical ...

Drinking water contamination with heavy metals, particularly lead, is a persistent problem worldwide with grave public health consequences. Existing purification methods often cannot address this problem quickly and economically. Here we report a cheap, wa ...

Two-dimensional (2D) transition metal carbides, nitrides and carbonitrides, known as MXenes, are of interest as electrocatalysts. Tungsten-based MXenes are predicted to have low overpotentials in the hydrogen evolution reaction but their synthesis has prov ...

Organic-inorganic lead halide perovskites with over 23% power conversion efficiency have attracted enormous academic and industrial attention due to their low-cost fabrication and high device performance. Self-passivated tin oxide as an electron transport ...

Perovskite solar cells (PSCs) are promising alternatives toward clean energy because of their high-power conversion efficiency (PCE) and low materials and processing cost. However, their poor stability under operation still limits their practical applicati ...

Strontium migration from the oxygen electrode to the interface between the electrolyte and interlayer was investigated in solid oxide cells in fuel cell (SOFC) and electrolysis (SOEC) modes. Four samples were imaged by focused ion beam scanning electron mi ...

While metal-organic frameworks (MOF) alone offer a wide range of structural tunability, the formation of composites, through the introduction of other non-native species, like polymers, can further broaden their structure/property spectrum. Here we demonst ...

Competitive mechanisms contribute to image contrast from dislocations in annular dark-field scanning transmission electron microscopy (ADF-STEM). A clear theoretical understanding of the mechanisms underlying the ADF-STEM contrast is therefore essential fo ...

Transmission electron microscopy (TEM) supported by various chemical analyses techniques as well as atom probe tomography is applied to characterize newly identified nanosized precipitates in Mo-alloy nanopillars that were prepared by directional solidific ...

Sodium chromium hexacyanoferrate (NaCrHCF) is obtained here using a facile co-precipitation method at room temperature. The powder was investigated in terms of potential use as a cathode material for aqueous sodium-ion batteries under neutral conditions. T ...

MOF-derived Co3S4/CN hollow nanoboxes (CN=nitrogen-doped carbon) was used to catalyze the chemoselective reduction of nitroarenes to anilines under mild reaction conditions with H-2 as the reducing agent. The catalyst provides high conversion efficiencies ...

Emad Oveisi

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Stereo-vision three-dimensional reconstruction of curvilinear structures imaged with a TEM

Unraveling metal effects on CO2 uptake in pyrene-based metal-organic frameworks

Enhanced charge collection with passivation of the tin oxide layer in planar perovskite solar cells

Rapid, Selective Heavy Metal Removal from Water by a Metal-Organic Framework/Polydopamine Composite

Synthesis of a 2D tungsten MXene for electrocatalysis

Stable perovskite solar cells using tin acetylacetonate based electron transporting layers

Selective growth of layered perovskites for stable and efficient photovoltaics

Strontium Migration at the GDC-YSZ Interface of Solid Oxide Cells in SOFC and SOEC Modes

A metal-organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis

Insights into image contrast from dislocations in ADF-STEM

Nanoprecipitates in single-crystal molybdenum-alloy nanopillars detected by TEM and atom probe tomography

Sodium chromium hexacyanoferrate as a potential cathode material for aqueous sodium-ion batteries

Metal-Organic-Framework-Derived Co3S4 Hollow Nanoboxes for the Selective Reduction of Nitroarenes

Selective and Stable Electroreduction of CO2 to CO at the Copper/Indium Interface

Efficient Polycrystalline Single‐Cation Perovskite Light‐Emitting Diodes by Simultaneous Intracrystal and Interfacial Defect Passivation (Small 1/2025)

Mixed-phase MOF-derived Titanium Dioxide for Photocatalytic Hydrogen Evolution: The Impact of the Templated Morphology

On the ADF-STEM dislocation contrast

Stimuli-responsive Pt(0)-containing metallosupramolecular polymers

Computer Vision Techniques Applied to the Reconstruction of the 3-D Structure of Dislocations