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

Nonlinear optical and optical limiting properties of In2S3 chalcogenide thin films: Influence of defect states and deposition technique Hilal, Omer; Emur, H. Gulce; Dogan, Anil; YILDIZ, ELİF; Isik, Mehmet; Parlak, Mehmet; Surucu, Ozge; ELMALI, AYHAN; KARATAY, AHMET (2026-05-01) In this study, the nonlinear absorption (NA) and optical limiting (OL) properties of indium sulfide (In2S3) thin films prepared by physical vapor deposition (PVD) and radio-frequency (RF) magnetron sputtering were investig...
Integrating theoretical and experimental approaches to unveil the mechanical properties of CuSbSe2 thin films Surucu, Ozge; Gencer, Aysenur; Usanmaz, Demet; Parlak, Mehmet; SÜRÜCÜ, GÖKHAN (2024-12-01) An exhaustive investigation of the mechanical characteristics of CuSbSe2 thin films is conducted in this study by combining experimental nanoindentation methods with theoretical simulations. The Ab-initio Molecular Dynamic...
Exploring Temperature-Dependent bandgap and Urbach energies in CdTe thin films for optoelectronic applications Surucu, O.; SÜRÜCÜ, GÖKHAN; Hasanlı, Nızamı; Parlak, Mehmet; Isik, M. (2024-10-15) This study examines CdTe thin films deposited via RF magnetron sputtering, focusing on structural and optical properties. X-ray diffraction, Raman spectroscopy, and SEM assessed structural characteristics. Optical properti...
Performance analysis of CuSbSe2 thin-film solar cells with Cd-free window layers SÜRÜCÜ, GÖKHAN; Bal, Ersin; Gencer, Aysenur; Parlak, Mehmet; Surucu, Ozge (2024-05-15) This study investigates novel thin-film solar cells featuring CuSbSe2 (CASe) with ZnSnO and ZnMgO windows in the layer superstrate structure. For glass/ITO/ZnMgO/CASe/Cu + Au, the J-V measurements reveal a short-circuit cu...
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...
Comparison of photoluminescence properties of Zn-and O-polar ZnO thin films Tülek, R.; Parlak, Mehmet; Teke, A. (2023-01-01) Optical properties of Zn- and O-polar Zinc Oxide (ZnO) thin films grown by molecular beam epitaxy (MBE) were investigated by the temperature and excitation intensity dependent photoluminescence (PL) measurements. The behav...
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...

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