Yazar "Tomakin, Murat" için FEF, Fizik Bölümü Koleksiyonu listeleme
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Performance assessment of oxygenated CdS films-based photodetector
Polat, İ.; Yılmaz, S.,; Küçükömeroğlu, Tayfur; Tomakin, Murat; Bacaksız, Emin (Elsevier, 2024)dS films were grown by thermal evaporation on glass substrates. After growth process, samples were oxygenated at 400 °C at various gas pressures for 5 mins employing rapid thermal process. The produced CdS films were used ... -
Performance of Si-based solar cell utilizing optimized Al-doped ZnO films as TCO layer
Altuntepe, Ali; Erkan, Serkan; Hasret, Onur; Yagmyrov, Atajan; Yazıcı, Duygu; Tomakin, Murat; Olgar, Mehmet Ali; Zan, Recep (Springer, 2023)luminum-doped zinc oxide (AZO) is one of the most popular transparent conducting oxide layers that can be employed in many optoelectronic applications in particular in photovoltaic devices due to being a low-cost and ... -
Phase transformation in Cu2SnS3 (CTS) thin films through pre-treatment in sulfur atmosphere
Olgar, Mehmet Ali; Başol, Bülent M.; Tomakin, Murat; Bacaksız, Emin (Springer, 2021)In this study, Cu2SnS3 (CTS) thin films prepared by a two-step sulfurization process were characterized. Cu and Sn metallic layers were first deposited on glass substrates by sputtering and then annealed in-situ while in ... -
Photodetector properties of CdSe thin films grown by close space sublimation method
Olgar, Mehmet Ali; Başol, Bülent M.; Polat, İsmail; Tomakin, Murat; Küçükömeroğlu, Tayfur; Bacaksız, Emin (Springer, 2023)In the present study, CdSe thin films were grown by Close Space Sublimation (CSS) method on glass substrates at elevated temperatures. The prepared films were analyzed through several characterization techniques such as ... -
Physical properties of CdS:Ga thin films synthesized by spray pyrolysis technique
Yılmaz, Salih; Polat, İsmail; Olgar, Mehmet Ali; Tomakin, Murat; Töreli, S. B.; Bacaksız, Emin (Springer, 2017)This paper reports the investigation of physical properties of CdS:Ga thin films grown for the first time by a simple spray pyrolysis method as a function of Ga-doping level from 0 to 8 at.%. X-ray diffraction (XRD), ... -
Preparation and characterization of new window material CdS thin films at low substrate temperature (<300 K) with vacuum deposition
Tomakin, Murat; Altunbaş, M.; Bacaksz, Emin; Polat, I. (Elsevier, 2011)Low-temperature vacuum deposition instead of the commonly used vacuum deposition at high substrate temperatures has been applied to prepare new window material CdS thin films. The structural, optical and electrical properties ... -
Processing CdS- and CdSe-containing window layers for CdTe solar cells
Çiriş, Ali; Başol, Bülent M.; Atasoy, Yavuz; Karaca, Abdullah; Tomakin, Murat; Küçükömeroğlu, Tayfur; Bacaksız, Emin (Elsevier, 2021)The influence of heat treatment steps on the characteristics of (CdS, CdSe) junction partners and on solar cell performance was studied. CdS films were obtained by chemical bath deposition, and CdSe layers were evaporated. ... -
A research on growth and characterization of CdS:Eu thin films
Yılmaz, Sevil Savaşkan; Polat, İsmail; Tomakin, Murat; Bacaksız, Emin (Springer Heidelberg, 2019)Chemical spray pyrolysis-grown CdS thin films including various quantities of Eu atoms (from 0 to 10at.%) were synthesized on glass slides. the detailed physical properties of the produced CdS and CdS:Eu thin films were ... -
Role of Mg doping in the structural, optical, and electrical characteristics of ZnO-based DSSCs
ZnO- and Mg-doped ZnO samples are prepared by spray pyrolysis on conducting glass substrates to fabricate ZnO-based dye-sensitized solar cells (DSSCs). In uences of Mg-doping content on the power conversion efficiencies ... -
Role of the radio frequency magnetron sputtered seed layer properties on ultrasonic spray pyrolyzed ZnO thin films
Tomakin, Murat; Onuk, Zuhal; Rujisamphan, Nopporn; Shah, Syed Ismat (Elsevier Science Sa, 2017)Herein, we investigated structural and electrical properties of ultrasonic spray pyrolyzed ZnO thin films (ZnO (USP)) deposited on radio frequency sputtered ZnO nanocolumns (ZnO(Seed)) under various oxygen atmosphere on ... -
Semi-conductive carbon from industrial tea waste biomass for a p-n junction
Akgül, Gökçen; Tomakin, Murat; Erkaya, Hasan Hüseyin (Springer, 2024)Some semiconducting carbonaceous material was developed from industrial tea waste biomass by catalytic pyrolysis and heteroatom doping; then, a p-n junction was realized on an n-type Si substrate. I-V characteristics of ... -
Sm-doped CdS thin films prepared by spray pyrolysis: a structural, optical, and electrical examination
Yılmaz, Salih; Polat, İsmail; Tomakin, Murat; Küçükömeroğlu, Tayfur; Töreli, S. B.; Bacaksız, Emin (Springer, 2018)Virgin and Sm-doped CdS thin films were prepared by spray pyrolysis route on glass substrates. the influences of Sm-doping amount on structural, topographical, optical and electrical properties were examined. It was found ... -
Structural and optical properties of ZnO and Al-doped ZnO microrods obtained by spray pyrolysis method using different solvents
Tomakin, Murat (Elsevier, 2012)ZnO and Al-doped ZnO microrods were obtained by spray pyrolysis method using different solvents such as methanol and propanol. The effect of the type of solvent in the starting solution on the structural, morphological and ... -
Structural, morphological, optical analyses of Ni-doped CdS thin films and their photovoltaic performance in hybrid solar cells
Yılmaz, Sevil Savaşkan; Tomakin, Murat; Unverdi, Ahmet; Aydın, A.; Polat, İsmail; Bacaksız, Emin (Springer, 2020)This work reports influences of variation in Ni-doping on structural, morphological, and optical properties of CdS thin films and in their hybrid solar cell applications. X-ray diffraction data showed that increase of ... -
Surface modification of CBD-grown CdS thin films for hybrid solar cell applications
Savaşkan Yılmaz, Sevil; Ünverdi, Ahmet; Tomakin, Murat; Polat, İsmail; Bacaksız, Emin (Elsevier Gmbh, 2019)The influences of interfacial modification by various dyes (Eosin-Y, D205, N719 and N3) on structural, morphological, optical and electrical properties of CdS-based hybrid solar cells are investigated. Structural properties ... -
Synthesis and fabrication of Mg-doped ZnO-based dye-synthesized solar cells
Polat, İsmail; Yılmaz, Sevil Savaşkan; Bacaksız, Emin; Atasoy, Yıldız; Tomakin, Murat (Springer, 2014)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 the samples ... -
Transparent and conductive CdS:Ca thin films for optoelectronic applications
Yılmaz, Sevil; Polat, İsmail; Tomakin, Murat; Bacaksız, Emin (Springer Heidelberg, 2020)This paper presents the structural, morphological, optical and electrical evolution of Ca-doped CdS thin films. Non-doped and Ca-doped CdS samples with various amounts of Ca atoms (from 0 to 10 at.% with an increasing step ... -
Use of the cold substrate method for biomaterials: the dtructural and biological properties of the Ag layers deposited on Ti-6Al-4V
Duymuş, Zeynep Yeşil; Nevruzoğlu, Vagif; Ateş, Sabit Melih; Yüzüak, Ercüment; Tomakin, Murat (Springer, 2020)Silver nanofilms were vacuum-deposited on Ti-6Al-4V substrates at low (< 300 K) temperatures to improve their biocompatibility. After the surface of the Ti-6Al-4V samples was coated with Ag over the temperature range from ...