scholarly journals Chemistry and properties at a sub-nanometer scale

2016 ◽  
Vol 7 (7) ◽  
pp. 3978-3991 ◽  
Author(s):  
Bing Ni ◽  
Xun Wang

Ultrathin materials at a sub-nanometer scale not only feature atomic scale size, but also possess unprecedented properties compared to conventional nanomaterials.

Actuators ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 71 ◽  
Author(s):  
Ramesh Shrestha ◽  
Sheng Shen ◽  
Maarten P. de Boer

Because they can achieve a high degree of molecular chain alignment in comparison with their bulk counterparts, the mechanical and thermal properties of polymer nanofibers are of great interest. However, due to their nanometer-scale size, it is difficult to manipulate, grip, and test these fibers. Here, we demonstrate simple repeatable methods to transfer as-drawn fibers to micrometer-scale test platforms where their properties can be directly measured. Issues encountered and methods to minimize measurement artifacts are also discussed.


2003 ◽  
Vol 93 (6) ◽  
pp. 3501-3508 ◽  
Author(s):  
A. Anaya ◽  
A. L. Korotkov ◽  
M. Bowman ◽  
J. Waddell ◽  
D. Davidovic

CrystEngComm ◽  
2019 ◽  
Vol 21 (27) ◽  
pp. 4063-4071 ◽  
Author(s):  
Thiruparasakthi Balakrishnan ◽  
Min-Jae Lee ◽  
Jahar Dey ◽  
Sung-Min Choi

The drying time of iron oleate as a single and reliable control parameter for the fine size control (with a sub-nanometer scale step) of monodisperse IONPs in the large-scale thermal decomposition method.


1995 ◽  
Vol 418 ◽  
Author(s):  
C. T Whitea ◽  
J. J. C. Barretta ◽  
J. W. Mintmirea ◽  
M. L. Elert ◽  
D. H. Robertson

AbstractBecause of its importance in designing safer, more reliable explosives the shock to detonation transition in condensed phase energetic materials has long been a subject of experimental and theoretical study. This transition is thought to involve local hot-spots which represent regions in the material which couple efficiently to the shock wave leading to a locally higher temperature and ultimately initiation. However, how at the atomic scale energy is transferred from the shock front into these local “hot spots” remains a key question to be answered in studies of the predetonation process. In this paper we report results of molecular dynamics simulations that suggest that even nanometer scale defects can play an important role in the shock to detonation transition.


Nanoscale ◽  
2014 ◽  
Vol 6 (5) ◽  
pp. 2613-2617 ◽  
Author(s):  
Attila Geresdi ◽  
Miklós Csontos ◽  
Agnes Gubicza ◽  
András Halbritter ◽  
György Mihály

We demonstrate Ag2S memristive devices optimized for high speed operation. Andreev reflection spectroscopy reveals highly transparent, atomic scale conducting channels.


2001 ◽  
Vol 188 (3) ◽  
pp. 1121-1128
Author(s):  
K.Y. Wang ◽  
W.H. Song ◽  
S.L. Ye ◽  
J.M. Dai ◽  
S.G. Wang ◽  
...  

2021 ◽  
Author(s):  
Xiaodan Xu ◽  
Cong Wang ◽  
Wenqi Xiong ◽  
Yang Liu ◽  
Donghao Yang ◽  
...  

Abstract Strain engineering can effectively modify the materials lattice parameters at atomic scale, hence it has become an efficient method for tuning the physical properties of two-dimensional (2D) materials. The study of the strain regulated interlayer coupling is deserved for different kinds of heterostructures. Here, we systematically studied the strain engineering of WSe2/WS2 heterostructures as well as their constituent monolayers. The measured Raman and photoluminescence spectra demonstrate that the strain can evidently modulate the phonon energy and exciton emission of monolayer WSe2 and WS2 as well as the WSe2/WS2 heterostructures. The tensile strain can tune the electronic band structure of WSe2/WS2 heterostructure, as well as enhance the interlayer coupling. It is further revealed that the photoluminescence intensity ratio of WS2 to WSe2 in our WSe2/WS2 heterobilayer increases monotonically with tensile strain. These findings can broaden the understanding and practical application of strain engineering in 2D materials with nanometer-scale resolution.


2008 ◽  
Vol 354 (47-51) ◽  
pp. 5282-5286 ◽  
Author(s):  
E. Rozenberg ◽  
M. Auslender ◽  
A.I. Shames ◽  
Ya.M. Mukovskii ◽  
E. Sominski ◽  
...  

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