Publications associées à Record-Low Inhomogeneous Broadening of Site-Controlled Quantum Dots for Nanophotonics

Publications associées (18)

C-ald-grown Metal Oxide Shell Enables Distance-independent Triplet Energy Transfer From Quantum Dots to Molecular Dyes

Marco Fabbiano, Raffaella Buonsanti, Sascha Feldmann, Ona Segura Lecina, Tejas Deshpande

Hybrid nanocomposites including quantum dots (QDs) and molecular dyes offer tunability of charge and energy transfer processes, which are attractive for applications spanning from light-emitting devices to photocatalysis and photon upconversion. Core@shell ...

AMER CHEMICAL SOC2025

Exploring the self-assembly of supramolecular crystals with DNA tiles

Cem Tekin

The self-assembly of molecular components into organized nanomaterials is a fundamental process observed in nature, crucial for various biological functions. Gaining a deepened understanding of the underlying self-assembly principles provides valuable insi ...

EPFL2024

A Versatile Approach to Stabilize Liquid-Liquid Interfaces using Surfactant Self-Assembly

Julian Charles Shillcock

Stabilizing liquid-liquid interfaces, whether between miscible or immiscible liquids, is crucial for a wide range of applications, including energy storage, microreactors, and biomimetic structures. In this study, a versatile approach for stabilizing the w ...

Wiley-V C H Verlag Gmbh2024

Optical manipulation of plasmonic nanoparticles: Applications in surface chemistry and nano-optics

Jeonghyeon Kim

Optical tweezers are devices that can manipulate nano- and microparticles using a laser. The principle of optical tweezers is to apply a force to an object using the momentum of light. This force is very small, but it is sufficient to move things in the mi ...

EPFL2023

Synthesis and properties of heterostructures in nanowires and 2-D materials

Akshay Balgarkashi

Modern solid-state devices were made possible by the discovery of semiconductor heterostructures. Heterostructures offer the ability to fabricate low-dimensional nanostructures such as quantum dots which can restrain carriers in all three-directions. Quant ...

EPFL2022

Geomechanics for Energy and the Environment: Current Developments

Lyesse Laloui, Roba Houhou

Geomechanics is advancing our understanding of the multi-physical processes encountered in engineering practices involving energy storage and production and environmental protection for which the characterization of the behavior of relevant materials is es ...

2022

Electromagnetic forces in the time domain

Olivier Martin, Karim Achouri, Andrei Kiselev

We look beyond the standard time-average approach and investigate optical forces in the time domain. The formalism is developed for both the Abraham and Minkowski momenta, which appear to converge in the time domain. We unveil an extremely rich - and by fa ...

Optica Publishing Group2022

Revealing Weak Dimensional Confinement Effects in Excitonic Silver/Bismuth Double Perovskites

Mohammad Khaja Nazeeruddin, Giulia Grancini, Pascal Alexander Schouwink, Albertus Adrian Sutanto, Valentin Ianis Emmanuel Queloz, Inés Garcia Benito

Lead-free perovskites are attracting increasing interest as nontoxic materials for advanced optoelectronic applications. Here, we report on a family of silver/bismuth bromide double perovskites with lower dimensionality obtained by incorporating phenethyla ...

AMER CHEMICAL SOC2022

Coordination-Driven Monolayer-to-Bilayer Transition in Two-Dimensional Metal–Organic Networks

Henning Paul-Julius Stahlberg, Mina Moradi

We report on monolayer-to-bilayer transitions in 2D metal–organic networks (MONs) from amphiphiles supported at the water–air interface. Functionalized calix[4]arenes are assembled through the coordination of selected transition metal ions to yield monomol ...

2021

Gallium-Based Thin Films for Wearable Sensors and Electronic Skins

Laurent Mirko Dejace

Integrated wearable electronics capable of providing biophysical information on complex and dynamic systems have attracted high interest in diverse fields such as healthcare, gaming and robotics. Wearable sensors can create artificial, electronic skins wit ...

EPFL2020

CO2 chemical transformations using metal-organic frameworks

Serhii Shyshkanov

During the last decades, intensive efforts have been applied to tackle the enormous emissions of CO2 into atmosphere. These efforts include not only developing efficient carbon capture techniques, but also the introduction of new ways to transform the capt ...

EPFL2020

alpha-CsPbI(3)Bilayers via One-Step Deposition for Efficient and Stable All-Inorganic Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Tom Theodorus Antonius Lummen, Yong Ding, Olga Syzgantseva, Xianfu Zhang

The emerging inorganic CsPbI(3)perovskites are promising wide-bandgap materials for application in tandem solar cells, but they tend to transit from a black alpha phase to a yellow delta phase in ambient conditions. Herein, a gradient grain-sized (GGS) CsP ...

Wiley2020

Directed Self-Assembly of Block Copolymers for the Fabrication of Functional Devices

Luis Guillermo Villanueva Torrijo

Directed self-assembly of block copolymers is a bottom-up approach to nanofabrication that has attracted high interest in recent years due to its inherent simplicity, high throughput, low cost and potential for sub-10 nm resolution. In this paper, we revie ...

MDPI2020

Analysis of double cross-slip of pyramidal I < c plus a > screw dislocations and implications for ductility in Mg alloys

William Curtin, Rasool Ahmad

Solute accelerated cross-slip of pyramidal < c + a > screw dislocations has recently been recognized as a crucial mechanism in enhancing the ductility of solid-solution Mg alloys. In pure Mg, cross-slip is ineffective owing to the energy difference between ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Modeling Superlattices of Dipolar and Polarizable Semiconducting Nanoparticles

Federico Giberti

We present an analytical model to describe the stability of arbitrary semiconducting nanoparticle (NP) superlattices as a function of the dipole and polarizability of their constituents. We first validate our model by comparison with density functional the ...

AMER CHEMICAL SOC2019

Synthesis and Characterization of Coordination Cages Based on Clathrochelate Metalloligands

Giacomo Cecot

The work presented in this thesis focused on the synthesis and characterization of new metalloligands based on iron(II) clathrochelate complexes. Clathrochelates can be functionalized peripherally with donor groups capable of coordinating metal ions. The s ...

EPFL2019

Increasing N content in GaNAsP nanowires suppresses the impact of polytypism on luminescence

Anna Fontcuberta i Morral, Luca Francaviglia

Cathodoluminescence (CL) and micro-photoluminescence spectroscopies are employed to investigate effects of structural defects on carrier recombination in GaNAsP nanowires (NWs) grown by molecular beam epitaxy on Si substrates. In the NWs with a low N conte ...

2019

Ultrafast Broadband Fluorescence Up-conversion Study of the Electronic Relaxation of Metalloporphyrins

Majed Chergui, Andrea Cannizzo, Olivier Christian Bräm

We present a systematic study of the ultrafast fluorescence with broadband detection and similar to 110 fs resolution of 5,10,15,20-tetraphenylporphin (TPP) and 2,3,7,8,12,13,17,18-oc-taethylporphin (OEP), with open 3d-shell metals. We also revisit the cas ...

AMER CHEMICAL SOC2019