Site-projected electronic structure of two-dimensional Ti3C2MXene: the role of the surface functionalization groups

2016 ◽  
Vol 18 (45) ◽  
pp. 30946-30953 ◽  
Author(s):  
Damien Magne ◽  
Vincent Mauchamp ◽  
Stéphane Célérier ◽  
Patrick Chartier ◽  
Thierry Cabioc'h

The role of the surface groups in chemical bonding in two dimensional Ti3C2is evidenced at the nano-object level.

2020 ◽  
Vol 116 (20) ◽  
pp. 201601
Author(s):  
P. Schütz ◽  
M. Kamp ◽  
D. Di Sante ◽  
A. Lubk ◽  
B. Büchner ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45705-45713 ◽  
Author(s):  
Yuanfeng Xu ◽  
Zeyu Ning ◽  
Hao Zhang ◽  
Gang Ni ◽  
Hezhu Shao ◽  
...  

At room temperature, the uniaxial strain (εx = −8%) can enhance the hole mobility of monolayer penta-SiC2 along the b-direction by almost three orders of magnitude up to 1.14 × 106 cm2 V−1 s−1, which is much larger than that of graphene.


2008 ◽  
Vol 1128 ◽  
Author(s):  
Yuri Grin ◽  
Arndt Simon ◽  
Alim Ormeci

AbstractLaves phases comprise a large group of intermetallic compounds with general composition AB2 and multi-component derivatives. The crystal structures of Laves phases are often regarded as closest packing of spheres. This observation, beginning with very early work on Laves phases, has led many researchers over the years, to emphasize the role of geometrical factors in the formation of Laves phases. In order to develop a firm understanding of chemical bonding in Laves phases and assess the importance of geometrical factors, we undertake a first-principles-electronic structure-based chemical bonding analysis for several representatives. As a first step towards this goal we concentrate on the K-Cs system which contains the Laves phase CsK2 and the hexagonal Cs6K7 compounds. In such alkali-metal-only compounds it is generally expected that chemical bonding effects are minimal. Atom volumina and charge transfer investigations reported here, however, suggest that even in alkali metal-alkali metal Laves phases chemical bonding plays a non-negligible role.


Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1026
Author(s):  
Elisa Chiodi ◽  
Allison M. Marn ◽  
Matthew T. Geib ◽  
M. Selim Ünlü

The importance of microarrays in diagnostics and medicine has drastically increased in the last few years. Nevertheless, the efficiency of a microarray-based assay intrinsically depends on the density and functionality of the biorecognition elements immobilized onto each sensor spot. Recently, researchers have put effort into developing new functionalization strategies and technologies which provide efficient immobilization and stability of any sort of molecule. Here, we present an overview of the most widely used methods of surface functionalization of microarray substrates, as well as the most recent advances in the field, and compare their performance in terms of optimal immobilization of the bioreceptor molecules. We focus on label-free microarrays and, in particular, we aim to describe the impact of surface chemistry on two types of microarray-based sensors: microarrays for single particle imaging and for label-free measurements of binding kinetics. Both protein and DNA microarrays are taken into consideration, and the effect of different polymeric coatings on the molecules’ functionalities is critically analyzed.


2021 ◽  
Vol 555 ◽  
pp. 149516
Author(s):  
Jacek J. Kolodziej ◽  
Dawid Wutke ◽  
Jakub Lis ◽  
Natalia Olszowska

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8552-8558
Author(s):  
Tuan V. Vu ◽  
A. I. Kartamyshev ◽  
Nguyen V. Hieu ◽  
Tran D. H. Dang ◽  
Sy-Ngoc Nguyen ◽  
...  

Surface functionalization is one of the useful techniques for modulating the mechanical and electronic properties of two-dimensional systems.


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