Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6771
Title: Hydrogen-induced sp2-sp3 rehybridization in epitaxial silicene
Authors: Solonenko, Dmytro
Dzhagan, Volodymyr
Cahangirov, Seymur
Bacaksız, Cihan
Şahin, Hasan
Zahn, Dietrich R. T.
Vogt, Patrick
Bacaksız, Cihan
Şahin, Hasan
Izmir Institute of Technology. Photonics
Izmir Institute of Technology. Photonics
Izmir Institute of Technology. Physics
Keywords: Hydrogenation
Epitaxial silicene
Raman spectroscopy
Issue Date: Dec-2017
Publisher: American Physical Society
Source: Solonenko, D., Dzhagan, V., Cahangirov, S., Bacaksız, C., Şahin, H., Zahn, D. R. T., and Vogt, P. (2017). Hydrogen-induced sp2-sp3 rehybridization in epitaxial silicene. Physical Review B, 96(23). doi:10.1103/PhysRevB.96.235423
Abstract: We report on the hydrogenation of (3×3)/(4×4) silicene epitaxially grown on Ag(111) studied by in situ Raman spectroscopy and state-of-the-art ab initio calculations. Our results demonstrate that hydrogenation of (3×3)/(4×4) silicene leads to the formation of two different atomic structures which exhibit distinct spectral vibrational modes. Raman selection rules clearly show that the Si atoms undergo a rehybridization in both cases from a mixed sp2-sp3 to a dominating sp3 state increasing the distance between the two silicene sublattices. This results in a softening of the in-plane and a stiffening of the out-of-plane phonon modes. Nevertheless, hydrogenated epitaxial silicene retains a two-dimensional nature and hence can be considered as epitaxial silicane. The level of hydrogenation can be determined by the intensity ratio of the Raman modes with different symmetries.
URI: http://doi.org/10.1103/PhysRevB.96.235423
http://hdl.handle.net/11147/6771
ISSN: 2469-9950
2469-9950
2469-9969
Appears in Collections:Photonics / Fotonik
Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
6771.pdfMakale1.25 MBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

5
checked on Jul 31, 2021

WEB OF SCIENCETM
Citations

6
checked on Jul 31, 2021

Page view(s)

10
checked on Aug 3, 2021

Download(s)

10
checked on Aug 3, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.