Yazar "Yelgel, Celal" için listeleme
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Defect dependent electronic properties of WTe2: a first-principles study
Yelgel, Celal; Yelgel, Övgü Ceyda (Institute of Physics, 2024)Tungsten ditelluride (WTe2) possesses fascinating electronic structures and exceptional properties that make it highly suitable for use in cutting-edge devices. Defects in WTe2 can have a significant influence on its ... -
Electronic structure of ABC-stacked multilayer graphene and trigonal warping: A first principles calculation
Yelgel, Celal (Iop Publishing Ltd, 2016)We present an extensive density functional theory (DFT) based investigation of the electronic structures of ABC-stacked N-layer graphene. It is found that for such systems the dispersion relations of the highest valence ... -
Engineering the electronic properties of MoTe2 via defect control
Yelgel, Celal; Yelgel, Övgü Ceyda (Taylor & Francis Ltd., 2024)The remarkable electronic properties of monolayer MoTe2 make it a very adaptable material for use in optoelectronic and nano-electronic applications. MoTe2 growth often exhibits intrinsic defects, which significantly ... -
First-principles modeling of GaN/MoSe2 van der Waals heterobilayer
Yelgel, Celal (Scientific Technical Research Council Turkey-Tubitak, 2017)We investigate structural and electronic properties of the graphene-like gallium nitride (GaN) monolayer deposited on a MoSe2 monolayer by using density functional theory with the inclusion of the nonlocal van der Waals ... -
First-principles modeling of GaN/MoSe2van der Waals heterobilayer
Yelgel, Celal (2017)We investigate structural and electronic properties of the graphene-like gallium nitride (GaN) monolayerdeposited on a MoSe2monolayer by using density functional theory with the inclusion of the nonlocal van der Waalscorrection. ... -
Stacking domains and dislocation networks in marginally twisted bilayers of transition metal dichalcogenides
Enaldiev, Vladimir V; Zolyomi, Viktor; Yelgel, Celal; Magorrian, Samuel J.; Fal'ko, Vladimir I. (Amer Physical Soc, 2020)We apply a multiscale modeling approach to study lattice reconstruction in marginally twisted bilayers of transition metal dichalcogenides (TMD). For this, we develop density functional theory parametrized interpolation ... -
Structural and electronic properties of MoS2, WS2, and WS2/MoS2 heterostructures encapsulated with hexagonal boron nitride monolayers
Yelgel, Celal; Yelgel, Övgü Ceyda; Gülseren, Oğuz (Amer Inst Physics, 2017)In this study, we investigate the structural and electronic properties of MoS2, WS2, and WS2/MoS2 structures encapsulated within hexagonal boron nitride (h-BN) monolayers with first-principles calculations based on density ... -
Structural and electronic properties of multilayer graphene on monolayer hexagonal boron nitride/nickel (111) interface system: A van der Waals density functional study
Yelgel, Celal (Amer Inst Physics, 2016)The structural and electronic properties of multilayer graphene adsorbed on monolayer hexagonal boron nitride (h-BN)/Ni(111) interface system are investigated using the density functional theory with a recently developed ... -
Surface termination dependence of electronic and optical properties in Ti2CO2 MXene monolayers
Kandemir, Zafer; Torun, Engin; Paleari, Fulvio; Yelgel, Celal; Şevik, Cem (Amer Physical Society, 2022)Two-dimensional (2D) MXenes are a rapid growing family of 2D materials with rich physical and chemical properties where their surface termination plays an essential role. Among the various 2D MXenes, function-alization of ... -
Thermoelectric transport behaviours of n-type Mg-2 (Si,Sn,Ge) quaternary solid solutions
Yelgel, Övgü Ceyda; Yelgel, Celal (Keai Publishing Ltd, 2019)Mg2X (X=Si, Sn, and Ge) based systems have attracted widespread attention owing to their various benefits in thermoelectric applications. in particular, to date, ternary Mg2X based solid solutions have become one of the ... -
Tunable electronic properties of van der Waals heterostructures composed of stanene adsorbed on two-dimensional, graphene-like nitrides
Yelgel, Celal (Amer Inst Physics, 2019)We investigated the structural stability and electronic properties of stanene/graphene-like nitride (stanene/XN, X = Al, B, and Ga) heterostructures using first-principles calculations. the results reveal that stanene ...
