Concept
Crystallography
Related publications (369)
Complements to Mugge and Friedel's Theory of Twinning
The crystallography of twinning is based on the concepts of simple shear and obliquity introduced by Mugge, Mallard and Friedel at the turn of the last century, with tensor mathematics later developed by Bilby, Bevis and Crocker in the 1960s. We propose a ...
2020Universal approach toward high-efficiency two-dimensional perovskite solar cells via a vertical-rotation process
Mohammad Khaja Nazeeruddin, Pascal Alexander Schouwink, Yong Ding, Filippo de Angelis, Cristina Roldán Carmona, Mo Li, Cheng Liu
The emerging 2D perovskites exhibit superior stability and similar optoelectronic attributes compared to the 3D analogues, but their strong exciton-binding energy and inferior interlayer charge-transport reduce dramatically the device performance. Herein, ...
2020Strain glass transition of cobalt phase in a cemented carbide
Cemented carbides are hard materials used for the fabrication of cutting tools. They consist of hard micron or sub-micron carbide grains held together in a matrix of a tough metallic binder such as cobalt. The understanding and control of cobalt characteri ...
ELSEVIER SCI LTD2020Antiproliferative Activities of Diimine-Based Mixed Ligand Copper(II) Complexes
A series of Cu(diimine)(X-sal)(NO3) complexes, where the diimine is either 2,2'-bipyridine (bpy) or 1,10-phenanthroline (phen) and X-sal is a monoanionic halogenated salicylaldehyde (X = Cl, Br, I, or H), have been synthesized and characterized by elementa ...
AMER CHEMICAL SOC2020Guanine‐Stabilized Formamidinium Lead Iodide Perovskites
Shaik Mohammed Zakeeruddin, David Lyndon Emsley, Ursula Röthlisberger, Jovana Milic, Yuhang Liu, Marko Mladenovic, Ulf Anders Hagfeldt, Dominik Józef Kubicki, Dan Ren, Amita Ummadisingu, Linfeng Pan, Paramvir Ahlawat, Marco Alejandro Ruiz Preciado, Li Hong
Formamidinium (FA) lead iodide perovskite materials feature promising photovoltaic performances and superior thermal stabilities. However, conversion of the perovskite α‐FAPbI3 phase to the thermodynamically stable yet photovoltaically inactive δ‐FAPbI3 ph ...
2020Magnetic-field-induced reorientation in the spin-density-wave and the spin-stripe phases of the frustrated spin-1/2 chain compound beta-TeVO4
beta-TeVO4 is a frustrated spin-1/2 zig-zag chain system, where spin-density-wave (SDW), vector-chiral (VC) and an exotic dynamic spin-stripe phase compete at low temperatures. Here we use torque magnetometry to study the anisotropy of these phases in magn ...
2020Bronsted and Lewis acid adducts of triazenes
Rosario Scopelliti, Kay Severin, Farzaneh Fadaei Tirani, Abdusalom Suleymanov, Iris Roswitha Landman, Frederick Mark Chadwick
The synthetic utility of triazenes rests on the fact that the triazene function can be cleaved by BrOnsted or Lewis acids, liberating diazonium compounds. However, the preferred coordination site of the acid is still a matter of debate. We have analyzed tr ...
2020Simulation of silicon KOH and dry etching methods for micromould fabrication
The purpose of this project is to investigate the suitability of wet etching methods such as KOH etching for silicon micromoulds fabrication. Those moulds are intended for preceramic polymer (PCP) casting and specific requirements regarding the profile of ...
2020Copper-Catalyzed 1,2-Methoxy Methoxycarbonylation of Alkenes with Methyl Formate
Qian Wang, Jieping Zhu, Alexandre Julien Florent Leclair, Balázs Budai
Reported here is a copper-catalyzed 1,2-methoxy methoxycarbonylation of alkenes by an unprecedented use of methyl formate as a source of both the methoxy and the methoxycarbonyl groups. This reaction transforms styrene and its derivatives into value-added ...
2019