Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 276.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 276.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 276.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26076932
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2015 ; 5
(ä): 10872
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Elastic Deformations in 2D van der waals Heterostructures and their Impact on
Optoelectronic Properties: Predictions from a Multiscale Computational Approach
#MMPMID26076932
Kumar H
; Er D
; Dong L
; Li J
; Shenoy VB
Sci Rep
2015[Jun]; 5
(ä): 10872
PMID26076932
show ga
Recent technological advances in the isolation and transfer of different
2-dimensional (2D) materials have led to renewed interest in stacked Van der
Waals (vdW) heterostructures. Interlayer interactions and lattice mismatch
between two different monolayers cause elastic strains, which significantly
affects their electronic properties. Using a multiscale computational method, we
demonstrate that significant in-plane strains and the out-of-plane displacements
are introduced in three different bilayer structures, namely graphene-hBN,
MoS2-WS2 and MoSe2-WSe2, due to interlayer interactions which can cause bandgap
change of up to ~300 meV. Furthermore, the magnitude of the elastic deformations
can be controlled by changing the relative rotation angle between two layers.
Magnitude of the out-of-plane displacements in graphene agrees well with those
observed in experiments and can explain the experimentally observed bandgap
opening in graphene. Upon increasing the relative rotation angle between the two
lattices from 0° to 10°, the magnitude of the out-of-plane displacements decrease
while in-plane strains peaks when the angle is ~6°. For large misorientation
angles (>10°), the out-of-plane displacements become negligible. We further
predict the deformation fields for MoS2-WS2 and MoSe2-WSe2 heterostructures that
have been recently synthesized experimentally and estimate the effect of these
deformation fields on near-gap states.