Kurum Yazarı "Sevik, Cem" PubMed İndeksli Yayınlar Koleksiyonu İçin Listeleme
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A bottom-up route to enhance thermoelectric figures of merit in graphene nanoribbons
Sevinçli, Haldun; Sevik, Cem; Çağın, Tahir; Cuniberti, Gianaurelio (Nature Publishing Group, 2013)We propose a hybrid nano-structuring scheme for tailoring thermal and thermoelectric transport properties of graphene nanoribbons. Geometrical structuring and isotope cluster engineering are the elements that constitute ... -
Determination of Dynamically Stable Electrenes toward Ultrafast Charging Battery Applications
Kocabaş, Tugbey; Özden, Ayberk; Demiroğlu, İlker; Çakır, Deniz; Sevik, Cem (American Chemical Society, 2018)Electrenes, an atomically thin form of layered electrides, are very recent members of the 2D materials family. In this work, we employed first principle calculations to determine stable, exfoliatable, and application-promising ... -
A distinct correlation between the vibrational and thermal transport properties of group VA monolayer crystals
Kocabaş, Tugbey; Çakır, Deniz; Gülseren, Oğuz; Ay, Feridun; Perkgöz, Nihan Kosku; Sevik, Cem (Royal Soc Chemistry, 2018)The investigation of thermal transport properties of novel two-dimensional materials is crucially important in order to assess their potential to be used in future technological applications, such as thermoelectric power ... -
Equilibrium limit of thermal conduction and boundary scattering in nanostructures
Haskins, Justin B.; Kınacı, Alper; Sevik, Cem; Çağın, Tahir (Amer Inst Physics, 2014)Determining the lattice thermal conductivity (kappa) of nanostructures is especially challenging in that, aside from the phonon-phonon scattering present in large systems, the scattering of phonons from the system boundary ... -
In pursuit of barrierless transition metal dichalcogenides lateral heterojunctions
Aierken, Yierpan; Sevik, Cem; Gülseren, Oğuz; Peeters, Francois M.; Çakır, Deniz (IOP Publishing LTD, 2018)There is an increasing need to understand interfaces between two-dimensional materials to realize an energy efficient boundary with low contact resistance and small heat dissipation. In this respect, we investigated the ... -
The influence of surface functionalization on thermal transport and thermoelectric properties of MXene monolayers
Sarıkurt, Sevil; Çakır, Deniz; Keceli, Murat; Sevik, Cem (Royal Soc Chemistry, 2018)The newest members of a two-dimensional material family, involving transition metal carbides and nitrides (called MXenes), have garnered increasing attention due to their tunable electronic and thermal properties depending ... -
Promising thermoelectric properties of phosphorenes
Sevik, Cem; Sevinçli, Haldun (IOP Publishing LTD, 2016)Electronic, phononic, and thermoelectric transport properties of single layer black-and blue-phosphorene structures are investigated with first-principles based ballistic electron and phonon transport calculations employing ... -
Thermal conductivity engineering of bulk and one-dimensional Si-Ge nanoarchitectures
Kandemir, Ali; Özden, Ayberk; Çağın, Tahir; Sevik, Cem (Taylor & Francis LTD, 2017)Various theoretical and experimental methods are utilized to investigate the thermal conductivity of nanostructured materials; this is a critical parameter to increase performance of thermoelectric devices. Among these ... -
Thermal transport properties of MoS2 and MoSe2 monolayers
Kandemir, Ali; Yapıcıoğlu, Haluk; Kınacı, Alper; Çağın, Tahir; Sevik, Cem (IOP Publishing LTD, 2016)The isolation of single- to few-layer transition metal dichalcogenides opens new directions in the application of two-dimensional materials to nanoelectronics. The characterization of thermal transport in these new ... -
Vibrational and mechanical properties of single layer MXene structures: a first-principles investigation
Yorulmaz, Uğur; Özden, Ayberk; Perkgöz, Nihan Kosku; Ay, Feridun; Sevik, Cem (IOP Publishing LTD, 2016)MXenes, carbides, nitrides and carbonitrides of early transition metals are the new members of two dimensional materials family given with a formula of Mn+1 X-n. Recent advances in chemical exfoliation and CVD growth of ... -
Vibrational and thermodynamic properties of alpha-, ss-, gamma-, and 6, 6, 12-graphyne structures
Perkgöz, Nihan Kosku; Sevik, Cem (IOP Publishing LTD, 2014)Electronic, vibrational, and thermodynamic properties of different graphyne structures, namely alpha-, ss-, gamma-, and 6, 6, 12-graphyne, are investigated through first principles- based quasi-harmonic approximation by ...