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AuthorAlam, MD Raiyan
AuthorAlwarappan, Ganesh
AuthorBhandari, Aashka
AuthorPatil, Sunil
AuthorAlfalah, Sherin
AuthorShibl, Mohamed F.
AuthorHassan, Walid M.I.
AuthorNekovci, Reza
AuthorVerma, Amit
Available date2020-05-15T00:15:04Z
Publication Date2019
Publication Name2018 IEEE 13th Nanotechnology Materials and Devices Conference, NMDC 2018
ResourceScopus
URIhttp://dx.doi.org/10.1109/NMDC.2018.8605896
URIhttp://hdl.handle.net/10576/14926
AbstractSilicene, a two-dimensional (2D) silicon nanosheet, has gained immense interest due to potential applications, better compatibility, and expected integration with current silicon (Si) technology. This work explores the effects of silicene sheet size on its optoelectronic properties using Time-Dependent Density Functional Theory (TDDFT). Four structures of hydrogen-terminated silicene, Si 13 H 22 , Si 19 H 30, Sis4H 74 , and Si l04 H 134 are investigated. It is observed that the structures have size tunable spectral response in the UV spectrum. The optimized sheets show a relatively smaller physical deformation compared to equivalent sized 2D Germanium sheets. IR spectra calculation of various bond vibrations show a good match with reported experimental results. The results show the potential for these 2D sheets to be effective optoelectronic materials in the visible spectrum, unlike bulk Si and Si nanowires. 2018 IEEE.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectDOS
Gaussian 16
GaussSum
IR-Spectrum
Molar absorptivity
Silicene
TDDFT
UV-VIS
TitleTDDFT Studies on sheet size-dependency of optoelectronic properties of 2d silicon
TypeConference Paper
dc.accessType Abstract Only


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