Mehmet Parlak

E-mail

parlak@metu.edu.tr

Department

Department of Physics

ORCID

0000-0001-9542-5121

Scopus Author ID

7003589218

Web of Science Researcher ID

ABB-8651-2020

A new method to determine the continuous refractive index of an absorbing film by Generalized Stockwell Transform COŞKUN, EMRE; Emir, Cansu; Selamet, Semanur; Parlak, Mehmet; ÖZDER, SERHAT (2023-12-01) Generalized Stockwell Transform (GST) was adapted to analyze a transmittance signal to continuously determine the refractive index and extinction coefficient. The process is built by analyzing oscillation frequencies of th...
Nanowire geometry effects on devices and transport mechanisms: SnS2/SiNW heterojunction COŞKUN, EMRE; Emir, Cansu; TERLEMEZOĞLU BİLMİŞ, MAKBULE; Parlak, Mehmet (2023-10-01) The semiconductor nanowire technology has become essential in developing more complex and efficient devices. In this study, the Si nanowire (SiNW) heterojunction structure with a two-dimensional SnS2 thin film was investig...
Physical characterization of thermally evaporated Sn–Sb–Se thin films for solar cell applications Bektas, Tunc; Surucu, Ozge; TERLEMEZOĞLU BİLMİŞ, MAKBULE; Parlak, Mehmet (2023-05-01) The substitution of Sb in binary SnSe structure may lead to tailoring the physical properties of both SnSe and SbSe, promising absorber layers for thin film solar cells. The resulting Sn–Sb–Se structure could be an outstan...
Temperature effects on optical characteristics of thermally evaporated CuSbSe2 thin films for solar cell applications Surucu, O.; Isik, M.; Terlemezoglu, M.; Bektas, T.; Hasanlı, Nızamı; Parlak, Mehmet (2022-11-01) © 2022 Elsevier B.V.CuSbSe2 thin film was deposited by co-evaporation of binary CuSe and Sb2Se3 sources. The structural and morphological properties of the deposited thin film were investigated with X-ray diffraction (XRD)...
Structural, morphological and temperature-tuned bandgap characteristics of CuS nano-flake thin films Isik, Mehmet; Terlemezoglu, Makbule; Hasanlı, Nızamı; Parlak, Mehmet (2022-10-01) © 2022 Elsevier B.V.Copper sulfide (CuS) thin films were produced by radio-frequency (RF) magnetron sputtering method. Structural, morphological and optical characteristics of deposited CuS films were presented. X-ray diff...
Investigation of seeded vertical gradient freeze (VGF) growth of CdZnTe bulk crystals Balbaşı, Özden Başar; Ünal, Mustafa; Genç, Ayşe Merve; ÇELİK, GÜLÇİN; Parlak, Mehmet; Turan, Raşit (2022-04-15) © 2022 Elsevier B.V.Due to the requirement for superheating above the melting point in the homogenization process of CdZnTe material, complete seed melting remains as a significant problem for the seeded vertical gradient ...
Interface stability problem towards the end of THM growth of cadmium zinc telluride crystals Ünal, Mustafa; Balbaşı, Özden Başar; Genç, Ayşe Merve; Parlak, Mehmet; Turan, Raşit (2022-04-15) Growth of CdZnTe crystals by Travelling Heater Method (THM) is widely investigated by different groups. Interface shape and stability are critical parameters for the successful growth of high-quality CZT crystals. Even tho...
Growth and optical characterization of Sn0.6Sb0.4Se layer single crystals for optoelectronic applications Bektas, T.; Terlemezoğlu, Makbule; Surucu, O.; Isik, M.; Parlak, Mehmet (2022-04-01) © 2021SnSe compound is an attractive semiconductor material due to its usage in photovoltaic applications. The substitution of Sb in the SnSe compound presents a remarkable advantage especially in point of tuning optical c...
Temperature-dependent optical characteristics of sputtered NiO thin films Terlemezoglu, M.; Surucu, O.; Isik, M.; Hasanlı, Nızamı; Parlak, Mehmet (2022-01-01) In this work, nickel oxide thin films were deposited by radio frequency magnetron sputtering technique. X-ray diffraction (XRD), scanning electron microscopy and energy-dispersive X-ray analysis methods were applied to rev...
Production of High-Performance CdZnTe Crystals Grown by THM for Radiation Detection Applications Ünal, Mustafa; Balbaşı, Özden Başar; Karaman, Mehmet Can; Genç, Ayşe Merve; Parlak, Mehmet; Turan, Raşit (2022-01-01) © 2022, The Minerals, Metals & Materials Society.CdZnTe crystals are the perfect candidate to be used in room temperature x-ray and gamma-ray detection systems. Production of detector-grade crystals, on the other hand, is ...

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