Yazar "Yelgel, Övgü Ceyda" 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 ... -
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 ... -
Forecasting wind power generation using artificial neural network
Tokmak, Ayhan; Atalay, İlyas; Yelgel, Övgü Ceyda (Munzur Üniersitesi, 2023)Today, among renewable energy sources, wind energy is used effectively as a clean and sustainable energy source in electricity generation. The uncertain nature of renewable energy sources and the smart ability of the ... -
Investigation of photocatalytic performance of GaN-WSSe under vertical strain
Yelgel, Övgü Ceyda (Recep Tayyip Erdoğan University, 2023)The utilization of mechanical strain is an essential way to modify and optimize the physical properties of materials, possibly making them usable for a variety of applications, including nanoelectronics and renewable ... -
N- ve P-tip katkılı Mg2Si1-xSnx katı alaşımlarının termal iletkenliklerinin teorik çalışması
Yelgel, Övgü Ceyda (2017)Mg2Si1-xSnx katı alaşımları yüksek termoelektrik verimlilikleri sebebiyle 500 K’den 800 K’e kadar olan orta sıcaklılık aralığı için umut vaadeden termoelektrik materyallerdir. Bu çalışmada hem n- hem p-tip katkılı Mg2Si1-xSnx ... -
The role of intrinsic atomic defects in a Janus MoSSe/XN (X = Al, Ga) heterostructure: a first principles study
Yelgel, Övgü Ceyda (Institute for Condensed Matter Physics, 2023)The interactions between different layers in van der Waals heterostructures have a significant impact on the electronic and optical characteristics. By utilizing the intrinsic dipole moment of Janus transition metal ... -
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 ... -
Termoelektrik soğutucuların yağlı tip dağıtım transformatörlerinin faydalı ömürlerine etkisinin incelenmesi
Tören, Murat (2022)Elektrik enerjisinin iletim ve dağıtım sistemleri içerisinde aktif rol alan transformatörlerin, endüstriyel sahada sayıca fazla kullanım alanına sahip türü, dağıtım transformatörleridir. Bu transformatörler kullanıldıkları ... -
Theoretical and experimental evaluation of thermoelectric performance of alkaline earth filled skutterudite compounds
Yelgel, Övgü Ceyda; Ballıkaya, Sedat (Academic Press Inc Elsevier Science, 2020)Skutterudite compounds are one of the most promising thermoelectric materials that can be used for intermediate power generation applications because of their excellent thermoelectric and mechanical properties. in spite ... -
Theoretical study of thermoelectric properties of n-type doped Mg2Si0.4Sn0.6 solid solutions
Yelgel, Övgü Ceyda (Taylor & Francis Ltd, 2016)In this work, a systematic theoretical investigation of thermoelectric properties of n-type doped [GRAPHICS] solid solutions with [GRAPHICS] is presented in the temperature range [GRAPHICS] K. Electronic transport properties ... -
Theoretical study of thermoelectric properties of p-type Mg-2 Si1-chi Sn-chi solid solutions doped with Ga
Yelgel, Övgü Ceyda (Elsevier Science Sa, 2017)Mg-2 Si-Mg-2 Sn solid solutions are a promising class of thermoelectric materials. the thermoelectric properties of p-type Mg-2(Si-0.3 Sn-0.7)(1-y) Gay solid solutions with the doping levels as y = 0.05 and y = 0.07 are ... -
Thermoelectric properties of Bi2Se3/Bi2Te3/Bi2Se3 and Sb2Te3/Bi2Te3/Sb2Te3 quantum well systems
Yelgel, Övgü Ceyda; Srivastava, Gaurav Prakash (Taylor & Francis Ltd, 2014)In this work, we develop a theory of thermoelectric transport properties in two-dimensional semiconducting quantum well structures. Calculations are performed for n-type 0.1 wt.% CuBr-doped Bi2Se3/Bi2Te3/Bi2Se3 and p-type ... -
Thermoelectric properties of Mg2X (X = Si, Ge) based bulk and quantum well systems
Yelgel, Övgü Ceyda (Amer Inst Physics, 2017)Mg2X (X = Si, Ge) compounds are promising thermoelectric materials for middle temperature applications due to good thermoelectric properties, nontoxicity, and abundantly available constituent elements. So far, these materials ... -
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 ...
