Publications by Emad Oveisi | EPFL Graph Search

Efficient Polycrystalline Single-Cation Perovskite Light-Emitting Diodes by Simultaneous Intracrystal and Interfacial Defect Passivation

Polycrystalline perovskite light-emitting diodes (PeLEDs) have shown great promise with high efficiency and easy processability. However, PeLEDs using single-cation polycrystalline perovskite emitters have demonstrated low efficiency due to defects within ...

2025

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

Emad Oveisi, Berend Smit, Wendy Lee Queen, Christopher Patrick Ireland, Pascal Alexander Schouwink, Fatma Pelin Uran, Elias Moubarak, Andres Adolfo Ortega Guerrero, Miriam Jasmin Pougin, Jordi Espin Marti, Yutao Li

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 ...

NATURE PORTFOLIO2025

Metal Doping of Strongly Confined Halide Perovskite Nanocrystals under Ambient Conditions

Aurélien Bornet, Emad Oveisi, Pascal Alexander Schouwink

Halide perovskite nanocrystals are promising materials for optoelectronic applications. Metal doping provides an avenue to boost their performance further, e.g., by enhancing light emission, or to provide additional functionalities, such as nanoscale magne ...

American Chemical Society (ACS)2025

Nonuniform Chiralization of Metal-Organic Frameworks Using Imine Chemistry

Emad Oveisi, Natalia Gasilova, Berend Smit, Elias Moubarak, Kevin Maik Jablonka, Andres Adolfo Ortega Guerrero, Balázs Álmos Novotny, Sauradeep Majumdar

Homochiral metal-organic frameworks (MOFs) are exceptional media for heterogeneous enantiodifferentiation processes. Modifying available achiral structure-bearing MOF scaffolds is a preferred method to extend this class of materials. Reported postsynthetic ...

AMER CHEMICAL SOC2025

Anisotropic node distortions in amorphous MOFs: Low-valent Zr sites as catalytic hotspots

Emad Oveisi, Berend Smit, Wendy Lee Queen, Kumar Varoon Agrawal, Vikram Vinayak Karve, Andres Adolfo Ortega Guerrero, Till Marian Schertenleib, Jian Hao, Beatriz Bueno Mouriño, Timo Markus Oskar Felder

We introduce a new approach to defect engineering in Zr-based metal-organic frameworks (Zr-MOFs), aiming to reduce Zr site valency while preserving high node connectivity. Using a rapid heat treatment (RHT) in humid air, oxygen vacancies (O-vacancies) were ...

Elsevier BV2025

Synthesis of a 2D tungsten MXene for electrocatalysis

Emad Oveisi

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 ...

2025

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

Mohammad Khaja Nazeeruddin, Emad Oveisi

Wiley2025

Hybrid oxide coatings generate stable Cu catalysts for CO2 electroreduction

Emad Oveisi, Raffaella Buonsanti, Anna Loiudice, Petru Pasquale Albertini, Ona Segura Lecina, Min Wang, Philippe Benjamin Green, Mark Adrian Newton

Hybrid organic/inorganic materials have contributed to solve important challenges in different areas of science. One of the biggest challenges for a more sustainable society is to have active and stable catalysts that enable the transition from fossil fuel ...

Nature Portfolio2024

A post-synthetic modification strategy for enhancing Pt adsorption efficiency in MOF/polymer composites

Mounir Driss Mensi, Emad Oveisi, Mehrdad Asgari, Wendy Lee Queen, Olga Trukhina, Vikram Vinayak Karve, Till Marian Schertenleib

Growing polymers inside porous metal-organic frameworks (MOFs) can allow incoming guests to access the backbone of otherwise non-porous polymers, boosting the number and/or strength of available adsorption sites inside the porous support. In the present wo ...

Royal Soc Chemistry2024

Quantitative measurement and comparison of breakthroughs inside the gas diffusion layer using lattice Boltzmann method and computed tomography scan

Jan Van Herle, Emad Oveisi, Hossein Pourrahmani, Hamza Moussaoui

In Proton Exchange Membrane Fuel Cells (PEMFCs), the presence of residual water within the Gas Diffusion Layer (GDL) poses challenges during cold starts and accelerates degradation. A computational model based on the Lattice Boltzmann Method (LBM) was deve ...

Nature Portfolio2024

Catalytic hydrogen combustion over supported metal catalysts; comparison and kinetic study

Mounir Driss Mensi, Emad Oveisi, Andreas Züttel, Cedric David Koolen

Catalytic H2 combustion (CHC) is an efficient way to mitigate H2 slip from industrial processes, overcoming the explosion and NOx emission risks. Although Pt-based catalysts are state-of-the-art catalysts, little is known about the CHC catalytic activity o ...

2024

N-Containing Carbons Derived from Microporous Coordination Polymers for Use in Post-Combustion Flue Gas Capture

Emad Oveisi, Wendy Lee Queen, Vikram Vinayak Karve, Jordi Espin Marti

Herein, novel carbons that, owing to a high density of micropores (up to 79%) and N-content (up to 14.9%), offering exciting potential for post-combustion CO2 capture are reported. Given that little is known about how starting materials impact the structur ...

WILEY-V C H VERLAG GMBH2023

Low-temperature non-equilibrium synthesis of anisotropic multimetallic nanosurface alloys for electrochemical CO2 reduction

Emad Oveisi, Andreas Züttel, Jie Zhang, Mo Li, Cedric David Koolen

Multimetallic nanoparticles are of interest as functional materials due to their highly tunable properties. However, synthesizing congruent mixtures of immiscible components is limited by the need for high-temperature procedures followed by rapid quenching ...

Springernature2023

Metal-organic framework-based oxygen carriers with antioxidant activity resulting from the incorporation of gold nanozymes

Emad Oveisi, Berend Smit

Blood transfusions are a life-saving procedure since they can preserve the body's oxygen levels in patients suffering from acute trauma, undergoing surgery, receiving chemotherapy or affected by severe blood disorders. Due to the central role of hemoglobin ...

ROYAL SOC CHEMISTRY2023

Tailoring Morphology and Elemental Distribution of Cu-In Nanocrystals via Galvanic Replacement

Emad Oveisi, Raffaella Buonsanti, Pascal Alexander Schouwink, Laia Castilla Amorós, Valery Okatenko

The compositional and structural diversity of bimetallic nanocrystals (NCs) provides a superior tunability of their physico-chemical properties, making them attractive for a variety of applications, including sensing and catalysis. Nevertheless, the manipu ...

AMER CHEMICAL SOC2022

3D vs. turbostratic: controlling metal-organic framework dimensionality via N-heterocyclic carbene chemistry

Mounir Driss Mensi, Emad Oveisi, Mehrdad Asgari, Wendy Lee Queen, Ilia Kochetygov, Vikram Vinayak Karve, Shuliang Yang, Anita Justin, Till Marian Schertenleib

Using azolium-based ligands for the construction of metal-organic frameworks (MOFs) is a viable strategy to immobilize catalytically active N-heterocyclic carbenes (NHC) or NHC-derived species inside MOF pores. Thus, in the present work, a novel copper MOF ...

ROYAL SOC CHEMISTRY2022

3D reconstruction of curvilinear structures with stereo matching deep convolutional neural networks

Pascal Fua, Cécile Hébert, Emad Oveisi, Okan Altingövde, Gulnaz Ganeeva, Anastasiia Mishchuk

Curvilinear structures frequently appear in microscopy imaging as the object of interest. Crystallographic defects, i.e dislocations, are one of the curvilinear structures that have been repeatedly investigated under transmission electron microscopy (TEM) ...

ELSEVIER2022

Metallosupramolecular polymers as precursors for platinum nanocomposites

Emad Oveisi

Nanocomposites comprising a polymer matrix and metallic nanoparticles (NPs) can merge the structural features of the matrix material with the functional characteristics of the NPs. While such materials are promising for a wide range of applications, their ...

ROYAL SOC CHEMISTRY2022

Millisecond lattice gasification for high-density CO2- and O2-sieving nanopores in single-layer graphene

Mounir Driss Mensi, Emad Oveisi, Deepu Joseph Babu, Kumar Varoon Agrawal, Shiqi Huang, Mostapha Dakhchoune, Luis Francisco Villalobos Vazquez de la Parra, Shaoxian Li, Marina Micari

Etching single-layer graphene to incorporate a high pore density with sub-angstrom precision in molecular differentiation is critical to realize the promising high-flux separation of similar-sized gas molecules, e.g., CO2 from N2. However, rapid etching ki ...

2021

Soft-probe-scanning electrochemical microscopy reveals electrochemical surface reactivity of E. coli biofilms

Hubert Girault, Horst Pick, Emad Oveisi, Andreas Stephan Lesch, Sorour Darvishi

Investigating and understanding dynamic biofilm growth mechanisms is challenging, often because state-of-the-art optical characterization tools provide limited information. Micrometric electrochemical imaging of Escherichia coli biofilms using Soft-Probe-S ...

2021