Concept

Chalcogen

Related publications (73)

Atomic-Scale Structural Fluctuations of a Plasmonic Cavity

Klaus Kern, Anna Maria Roslawska, Abhishek Grewal

Optical spectromicroscopies, which can reach atomic resolution due to plasmonic enhancement, are perturbed by spontaneous intensity modifications. Here, we study such fluctuations in plasmonic electroluminescence at the single-atom limit profiting from the ...

AMER CHEMICAL SOC2021

Radial Spin Texture of the Weyl Fermions in Chiral Tellurium

Majed Chergui, Henrik Moodysson Rønnow, Marco Grioni, Oleg Yazyev, Luc Testa, Daniel Gosalbez Martinez, Philippe Bugnon, Alberto Crepaldi, Luca Moreschini, Mauro Fanciulli, Simon Karl Moser, Gianmarco Gatti, Serhii Polishchuk

Trigonal tellurium, a small-gap semiconductor with pronounced magneto-electric and magneto-optical responses, is among the simplest realizations of a chiral crystal. We have studied by spin- and angle-resolved photoelectron spectroscopy its unconventional ...

AMER PHYSICAL SOC2020

Revealing Exciton and Metal–Ligand Conduction Band Charge Transfer Absorption Spectra in Cu-Zn-In-S Nanocrystals

Jacques-Edouard Moser, Etienne Christophe Socie, Brener Rodrigo De Carvalho Vale

Copper indium sulfide quantum dots (QDs) have attracted substantial attention in recent years due to environmental issues and diverse applications. We report the synthesis and characterization of copper-zinc-indium-sulfide (CZIS) QDs and CZIS treated with ...

2020

Colloidal-ALD-Grown Core/Shell CdSe/CdS Nanoplatelets as Seen by DNP Enhanced PASS-PIETA NMR Spectroscopy

David Lyndon Emsley, Laura Piveteau, Brennan James Walder

Ligand exchange and CdS shell growth onto colloidal CdSe nanoplatelets (NPLs) using colloidal atomic layer deposition (c-ALD) were investigated by solid-state nuclear magnetic resonance (NMR) experiments, in particular, dynamic nuclear polarization (DNP) e ...

2020

Mono-, Di- and Tetra-iron Complexes with Selenium or Sulphur Functionalized Vinyliminium Ligands: Synthesis, Structural Characterization and Antiproliferative Activity

Paul Joseph Dyson, Lucinda Kate Batchelor, Silvia Schoch

A series of diiron/tetrairon compounds containing a S- or a Se-function (2a-d, 4a-d, 5a-b, 6), and the monoiron [FeCp(CO){SeC1(NMe2)(CHC3)-H-2(Me)}] (3) were prepared from the diiron mu-vinyliminium precursors [Fe2Cp2(CO)( mu-CO){mu-eta(1): eta(3)-C-3(R')( ...

2020

Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays

Andrea Cannizzo, Giulia Fulvia Mancini, Camila Bacellar Cases Da Silveira, Martin Beck, Victoria Kabanova, Samuel Menzi

OLED technology beyond small or expensive devices requires light-emitters, luminophores, based on earth-abundant elements. Understanding and experimental verification of charge transfer in luminophores are needed for this development. An organometallic mul ...

NATURE PUBLISHING GROUP2020

Black phosphorus quantum dots in inorganic perovskite thin films for efficient photovoltaic application

Michael Graetzel, Shaik Mohammed Zakeeruddin, Tong Zhang, Carole Graetzel, Mingkui Wang, Qingwei Li, Han Pan, Li Guan

Black phosphorus quantum dots (BPQDs) are proposed as effective seed-like sites to modulate the nucleation and growth of CsPbI2Br perovskite crystalline thin layers, allowing an enhanced crystallization and remarkable morphological improvement. We reveal t ...

2020

In Situ Electrochemical Oxidation of Cu2S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction

Kevin Sivula, Nestor Guijarro Carratala, Yongpeng Liu, Ting Zhang, Yong Zuo

Development of cost-effective oxygen evolution catalysts is of capital importance for the deployment of large-scale energy-storage systems based on metal-air batteries and reversible fuel cells. In this direction, a wide range of materials have been explor ...

AMER CHEMICAL SOC2019

Topological phase transitions driven by strain in monolayer tellurium

Oleg Yazyev, Quansheng Wu, Wei Zhang

Two-dimensional (2D) Xenes of a single type of element can offer fascinating electronic properties, such as massless Dirac fermions for extremely high charge-carrier mobility and topological insulators for dissipationless electron transport. However, the r ...

AMER PHYSICAL SOC2018

A genetic algorithm based design and experimental characterization of a highly thermostable metalloprotein

Ursula Röthlisberger, Rudolf Hovius, Marta Andreia Da Silva Perez, Esra Bozkurt, Nicholas John Browning

The development of thermostable and solvent-tolerant metalloproteins is a long-sought goal for many applica- tions in synthetic biology and biotechnology. In this work, we were able to engineer a highly thermo- and organic solvent- stable metallo variant o ...

2018

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.