Sökning: onr:"swepub:oai:DiVA.org:uu-511890" >
External electric f...
External electric field modulation of single-layer MoSe2 electronic and optical properties : A first-principles investigation
-
- Chafai, A. (författare)
- Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco.
-
- Behloul, M. (författare)
- Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco.;Mohammed V Univ, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci LaMCS, Rabat, Morocco.
-
- Essaoudi, I. (författare)
- Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco.
-
visa fler...
-
- Ahuja, Rajeev, 1965- (författare)
- Uppsala universitet,Materialteori,Indian Inst Technol Ropar, Dept Phys, Rupnagar 140001, Punjab, India.,Condensed Matter Theory Group
-
- Ainane, A. (författare)
- Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco.
-
visa färre...
-
Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08,Phys Dept, BP 11201, Meknes, Morocco.;Mohammed V Univ, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci LaMCS, Rabat, Morocco. (creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
-
Ingår i: MICRO AND NANOSTRUCTURES. - : Elsevier. - 2773-0123. ; 182
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- A wisely applied external electric field could effectively develop the optoelectronic properties of single-layer materials. The optical and electronic characteristics of monolayer molybdenum diselenide (ML-MoSe2) are deeply studied by means of density functional computations (DFT) to pinpoint the effect of the out-of-plane applied electric field (F//Oz). In fact, variations in the applied electric field strength gradually increase the energy of the electronic band gap (Eg) from 1.44 eV at 0V/& ANGS; to 1.51 eV at & PLUSMN;0.6V/& ANGS;. We also probed a sharp drop in the energy gap at high intensities. However, dielectric function, reflectivity, and loss function are studied for unpolarized and polarized incident light. Interestingly, the 001-polarization of the incident light affects the dielectric function's magnitude and position; this effect is more emphasized in the presence of an electric field with positive strengths. Furthermore, we found that the applied negative/positive electric field enhances the UV-visible reflectivity. Also, blue shifts of the ML-MoSe2 optical properties spectrum appear when subjected to the 001-polarized incident light. However, the loss function exhibits a weak response to the applied F. Additionally, we obtain that the 001-light polarization improves a plasmonic peak around 100 nm. Our results will provide a new view to understanding the controllable optical and electronic properties of MoSe2 monolayer, which is valuable for the design of new optoelectronic and plasmonic devices under development.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- 2D materials
- Electronic properties
- Optical properties
- Electric field
- Density functional computations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas