Yazar "Tomakin, Murat" için Fen Edebiyat Fakültesi listeleme
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Effect of CdS and CdSe pre-treatment on interdiffusion with CdTe in CdS/CdTe and CdSe/CdTe heterostructures
Çiriş, Ali; Başol, Bülent M.; Atasoy, Yavuz; Küçükömeroğlu, Tayfur; Karaca, Abdullah; Tomakin, Murat; Bacaksız, Emin (Elsevier, 2021)High efficiency CdTe solar cell structure has the configuration of CdS/CdSe/CdTe. Depending on the deposition and post deposition techniques employed, this stack is often subjected to high temperatures, often in presence ... -
Effect of heat treating metallic constituents on the properties of Cu2ZnSnSe4 thin films formed by a two-stage process
Olgar, Mehmet Ali; Başol, Bülent M.; Atasoy, Yavuz; Tomakin, Murat; Aygün, Gülnur; Özyüzer, Lütfi; Bacaksız, Emin (Elsevier Science Sa, 2017)In this study Cu2ZnSnSe4 (CZTSe) thin films were grown by a two-stage process that involved sputter deposition of a Cu/Sn/Zn/Cu metallic stack, annealing the stack at various temperatures for 30 min, evaporation of a Se ... -
Effect of precursor solution molarity on electrical and optical properties of spin-coated titanium dioxide (TiO2) thin films
Kanmaz, İmran; Tomakin, Murat (Springer, 2023)In our study, we investigated the electrical and optical properties of TiO2 thin films deposited on p-type c-Si using the spin coating method at different molarities. We observed that as molarity increased, reflectance ... -
Effect of ultra-thin CdSexTe1−x interface layer on parameters of CdTe solar cells
Çiriş, Ali; Başol, Bülent M.; Atasoy, Yavuz; Karaca, Abdullah; Tomakin, Murat; Küçükömeroğlu, Tayfur; Bacaksız, Emin (Elsevier, 2022)Effects of an ultra-thin CdSexTe1-x junction interface layer on CdTe solar cell parameters were investigated employing a CdSexTe1-x/CdTe absorber structure. CdSexTe1-x thin films with varying composition were grown by ... -
The effect of ZnCl2 and CdCl2 treatment on ZnS/CdS junction partner on CdTe cell performance
Çiriş, Ali; Atasoy, Yavuz; Karaca, Abdullah; Tomakin, Murat; Küçükömeroğlu, Tayfur; Bacaksız, Emin (Elsevier, 2022)In this study, the impacts of ZnCl2 and CdCl2 treatments on the structural and optical properties of ZnS/CdS bilayers and on the parameters of CdTe solar cells with ZnS/CdS junction partners were investigated. CdS and ZnS ... -
Effects of Na doping on CdS thin films and n-CdS/p-Si solar cells via chemical bath deposition method
Nevruzoğlu, Vagif; Tomakin, Murat; Keskenler, Eyüp Fahri; Öztürk, Göktürk (Korean Assoc Crystal Growth, Inc, 2017)Un-doped and Na doped CdS thin films were deposited by chemical bath deposition method. the effects of Na doping on structural, optical and electrical properties of CdS thin films and n-CdS/p-Si heterojunction were ... -
Effects of ultraviolet light on B-doped CdS thin films prepared by spray pyrolysis method using perfume atomizer
Novruzov, V. D.; Keskenler, Eyüp Fahri; Tomakin, Murat; Kahraman, Süleyman; Görür, Osman (Elsevier Science Bv, 2013)Boron doped CdS thin films were deposited by spray pyrolysis method using perfume atomizer. the effects of ultraviolet light on the structural, optical and electrical properties of B-doped CdS thin films were investigated ... -
Enhanced efficiency of CdS/P3HT hybrid solar cells via interfacial modification
Yılmaz, Salih; Polat, İsmail; Tomakin, Murat; Ünverdi, Ahmet; Bacaksız, Emin (Scientific Technical Research Council Turkey-Tubitak, 2019)The present paper examines the effects of surface modification of CdS with diverse dyes on fabricated CdS-based hybrid solar cells. the X-ray diffraction results showed that CdS thin films had a hexagonal phase with a ... -
Enhancement in the optical and electrical properties of CdS thin films through Ga and K co-doping
Yılmaz, Salih; Toreli, S. B.; Polat, İsmail; Olgar, M. A.; Tomakin, Murat; Bacaksız, Emin (Elsevier Sci Ltd, 2017)In the presented work, Ga-doped CdS and (Ga-K)-co-doped CdS thin films are grown on glass substrates at a temperature of 400 degrees C through spray pyrolysis. Influence of K-doping on structural, morphological, optical ... -
Enhancing label-free biosensing with cryogenic temperature-induced plasmonic structures
Nevruzoğlu, Vagif; Tomakin, Murat; Manir, Melih; Demir, Selçuk; Beriş, Fatih Şaban; Çetin, Arif E. (Springer, 2023)Plasmonic nanoparticles exhibit distinct nearfield properties that offer potential advantages for label-free biosensing applications. By generating strong interactions between light and matter, these nanoparticles can be ... -
Erratum to: Synthesis and fabrication of Mg-doped ZnO-based dye-sensitized solar cells(J Mater Sci: Mater Electron, (2014), 25, 3173-3178, DOI 10.1007/s10854-014-2000-5)
Polat, İsmail; Yılmaz, Sevil Savaşkan; Bacaksız, Emin; Atasoy, Yıldız; Tomakin, Murat (Springer, 2014)Abstract Undoped and 2, 4 and 6 at.% Mg-doped ZnO nanorods were successfully deposited on ZnO seeded fluorine tin oxide substrates by a simple chemical bath deposition technique to form a photoanode. It was seen that all ... -
Fabrication and characterization of Au/n-ZnO/p-Si/Al sandwich device with Sol-gel spin coating method
Keskenler, Eyüp Fahri; Keskenler, Mustafa Furkan; Tomakin, Murat; Nevruzoğlu, Vagif (Springer, 2019)ZnO thin films with the n-type properties were obtained on the p-Si substrates for multi-layered sandwich device depositing by sol-gel method. Au and Al were conducted on two side of hetero-junction by PVD technique. From ... -
Fabrication of CdS nanospheres-based hybrid solar cells having increased efficiency
Yılmaz, Şeyda; Ünverdi, Ahmet; Tomakin, Murat; Polat, İsmail; Bacaksız, Emin (Springer, 2022)The impact of surface modification through diverse dyes (Eosin-Y, D205, N719 and N3) on structural, morphological, optical, and electrical properties of CdS/P3HT hybrid solar cells is studied. X-ray diffraction (XRD) pattern ... -
Fabrication of gold thin films on cooled glass substrates
Manir, Melih; Genç, Gamze; Nevruzoğlu, Vagif; Tomakin, Murat; Çetin, Arif E. (Springer, 2024)In this article, gold (Au) thin films were fabricated on glass substrates under vacuum conditions (4.5 x 10(-6) Torr) within a temperature range of 100-300 K, incrementing in steps of 50 K. Analyses through Field Emission ... -
Facile synthesis and characterization of CdS thin films doped by yttrium atoms
Yılmaz, S.; Tomakin, Murat; Polat, İrem; Bacaksız, Emin (Springer, 2023)A facile preparation and structural, optical and electrical characterization of undoped and Y-doped CdS thin films are demonstrated through spray pyrolysis changing doping concentration of yttrium atoms in CdS structure. ... -
Growth and characterization of CT(S,Se) thin films and Al/n-Si/p-CT(S,Se)/Mo heterojunction diode application employing a two-stage process
Bayazıt, Tuğba; Olgar, Mehmet Ali; Küçükömeroğlu, Tayfur; Bacaksız, Emin; Tomakin, Murat (Elsevier, 2023)Cu2SnS3 (CTS), Cu2Sn(S,Se)3 (CTSSe), and Cu2SnSe3 (CTSe) thin films were deposited on n-type silicon wafer substrates using a two-stage process. This process involved drop-coating Cu-Sn precursors, which is different from ... -
Growth and characterization of Cu2SnS3 (CTS), Cu2SnSe3 (CTSe), and Cu2Sn(S,Se)(3) (CTSSe) thin films using dip-coated Cu-Sn precursor
Bayazıt, Tuğba; Olgar, Mehmet Ali; Küçükömeroğlu, Tayfur; Bacaksız, Emin; Tomakin, Murat (Springer, 2019)Ternary compounds Cu2SnS3, Cu2SnSe3 and Cu2Sn(S,Se)(3) thin films used in thin film solar cell applications were prepared at the first time by such a two-stage process that includes dip-coating of Cu-Sn precursors as ... -
Growth of Cu2ZnSnS4 (CZTS) thin films using short sulfurization periods
Olgar, Mehmet Ali; Tomakin, Murat; Küçükömeroğlu, Tevfik; Bacaksız, Emin (Iop Publishing Ltd, 2019)In this study CZTS thin films were grown by a two-stage process that involved sequential sputter deposition of metallic Cu, Zn, and Sn layers on Mo coated glass substrates followed by RTP annealing at 530 and 560 degrees ... -
Hybrid transparent conductive electrode structure for solar cell application
Altuntepe, Ali; Olgar, Mehmet Ali; Erkan, Serkan; Hasret, Onur; Keçeci, Ahmet Emin; Kökbudak, Gamze; Tomakin, Murat; Seyhan, Ayşe; Turan, Raşit; Zan, Recep (Elsevier, 2021)This study draws on our experiences with graphene to perform a hybrid TCO structure composed of AZO and graphene. We first set out to enhance the electrical and optical properties of AZO to enable its use especially in the ... -
Impact of CdSeTe and CdSe film deposition parameter on the properties of CdSeTe/CdTe absorber structure for solar cell applications
Çiriş, Ali; Atasoy, Yavuz; Tomakin, Murat; Karaca, Abdullah; Küçükömeroğlu, Tayfur; Bacaksız, Emin (Institute of Physics, 2024)In this study, the effect of depositing CdSeTe and CdTe layers at different substrate temperatures (STs) by evaporation in vacuum on the properties of the CdSeTe/CdTe stacks was investigated. First, CdSeTe layers in stack ...