• Air pollution, pollutant emissions and harmfull effects 

  Aydın, Hüseyin; İlkılıç, Cumali (Batman Üniversitesi, 2017-12-31)

  Present paper is an overview of the engine and air pollution problem especially in the urban areas. Air pollution is caused bu pollutant emissions is popular problem that should be solved in the world by means of ...

• Predicting factors affecting PISA 2015 mathematics literacy via radial basis function artificial neural network 

  Güre Bezek, Özlem; Kayri, Murat; Erdoğan, Fevzi (Batman Üniversitesi, 2019-05-23)

  In this study, radial basis function artificial neural network (RBFN), which is one of the of data mining methods, was employed to determine the factors affecting PISA 2015 (Programme for International Student Assessment ...

• Electronic properties of Al/DNA/p-Si MIS diode: Application as temperature sensor 

  Güllü, Ömer; Türüt, Abdülmecit (Elsevier, 2011-01)

  The current-voltage (I-V) measurements were performed in the temperature range (200-300 K) on Al/DNA/p-Si Schottky barrier type diodes. The Schottky diode shows non-ideal I-V behaviour with ideality factors n equal to 1.34 ...

• Analysis of electrical and photoelectrical properties of ZnO/p-InP heterojunction 

  Ocak, Yusuf Selim; Kulakçı, Mustafa; Turan, Raşit; Kılıçoğlu, Tahsin; Güllü, Ömer (Elsevier, 2011-06)

  A ZnO/p-InP heterojunction has been fabricated by dc sputtering of ZnO on p-InP. It has been observed that the device has a good rectification. The electrical properties of the device such as ideality factor, barrier height, ...

• Electronic parameters of high barrier Au/Rhodamine-101/n-Inp Schottky diode with organic interlayer 

  Güllü, Ömer; Aydoğan, Şakir; Türüt, Abdülmecit (Elsevier, 2012-01)

  In this work, we present that Rhodamine-101 (Rh-101) organic molecules can control the electrical characteristics of conventional Au/n-InP metal-semiconductor contacts. An Au/n-InP Schottky junction with Rh-101 interlayer ...

• Current density-voltage analyses and interface characterization in Ag/DNA/p-InP structures 

  Güllü, Ömer; Pakma, Osman; Türüt, Abdülmecit (American Institute of Physics, 2012-02-15)

  The current density-voltage (J-V) characteristics of Ag/DNA/p-InP metal-insulator-semiconductor (MIS) structures have been investigated in room temperature. We have observed that the Ag/DNA/p-InP structure shows an excellent ...

• High barrier Schottky diode with organic interlayer 

  Güllü, Ömer; Aydoğan, Şakir; Türüt, Abdülmecit (Elsevier, 2012-03)

  A new Cu/n-InP Schottky junction with organic dye (PSP) interlayer has been formed by using a solution cast process. An effective barrier height as high as 0.82 eV has been achieved for Cu/PSP/n-InP Schottky diodes, which ...

• Characterization of an Au/n-Si photovoltaic structure with an organic thin film 

  Özaydın, Cihat; Akkılıç, Kemal; İlhan, Salih; Rüzgar, Şerif; Güllü, Ömer; Temel, Hamdi (Elsevier, 2013-08)

  We demonstrate that a copper(II) organic complex can control the electrical characteristics of conventional Au/n-Si metal-semiconductor (MS) contacts. We investigated the electronic and photovoltaic properties of a Cu(II) ...

• Electronic properties of Cu/n-InP metal-semiconductor structures with cytosine biopolymer 

  Güllü, Ömer; Türüt, Abdülmecit (Polska Akademia Nauk, 2015-09)

  This work shows that cytosine biomolecules can control the electrical characteristics of conventional Cu/n-InP metal-semiconductor contacts. A new Cu/n-InP Schottky junction with cytosine interlayer has been formed by using ...

• Electronic parameters of MIS Schottky diodes with DNA biopolymer interlayer 

  Güllü, Ömer; Türüt, Abdülmecit (Walter de Gruyter, 2015-09-01)

  In this work, we prepared an ideal Cu/DNA/n-InP biopolymer-inorganic Schottky sandwich device formed by coating a n-InP semiconductor wafer with a biopolymer DNA. The Cu/DNA/n-InP contact showed a good rectifying behavior. ...

• The characteristic diode parameters in Ti/p-InP contacts prepared by DC sputtering and evaporation processes over a wide measurement temperature 

  Ejderha, Kadir; Asubay, Sezai; Yıldırım, Nezir; Güllü, Ömer; Türüt, Abdülmecit; Abay, Bahattin (World Scientific, 2017-06)

  The titanium/p-indium phosphide (Ti/p-InP) Schottky diodes (SDs) have been prepared by thermal evaporation and DC magnetron sputtering deposition. Then, their current-voltage (I-V) characteristics have been measured in the ...

• Synthesis and characterization of vanadium oxide thin films on different substrates 

  Güllü, Ömer; Pakma, Osman; Özaydın, Cihat; Özden, Şadan; Kariper, İshak Afşin (Springer Nature, 2017-04-11)

  In this study, the V8O15 derivative of vanadium oxide was produced on plain glass, indium tin oxide and silicon wafer substrate layers by taking advantage of wet chemical synthesis which is an easy and economical method. ...

• Morphological, structural and optical characteristics of graphene oxide layers and metal/interlayer/semiconductor photovoltaic diode application 

  Güllü, Ömer; Çankaya, Murat (National Institute of Research and Development for Optoelectronics, 2018)

  This work describes the optical, morphological and structural characterizations of graphene oxide (GO) layers grown by drop casting and annealing process. UV-vis optical measurement shows that the values of direct and ...

• An artificial neural network model to predict the thermal properties of concrete using different neurons and activation functions 

  Fidan, Şehmus; Oktay, Hasan; Polat, Süleyman; Öztürk, Sarper (Hindawi, 2019-04-01)

  Growing concerns on energy consumption of buildings by heating and cooling applications have led to a demand for improved insulating performances of building materials. The establishment of thermal property for a building ...

• The optical characterization of organometallic complex thin films by spectroscopic ellipsometry and photovoltaic diode application 

  Özaydın, Cihat; Güllü, Ömer; Pakma, Osman; İlhan, Salih; Akkılıç, Kemal (Elsevier, 2016-05)

  In this work, organometallic complex (OMC) films have been deposited onto glass or silicon substrates by spin coating technique and their photovoltaic application potential has been investigated. Optical properties and ...

• Wet chemical methods for producing mixing crystalline phase ZrO 2 thin film 

  Pakma, Osman; Özdemir, Cengiz; Kariper, İshak Afşin; Özaydın, Cihat; Güllü, Ömer (Elsevier, 2016-07)

  The aim of the study is to develop a more economical and easier method for obtaining ZrO 2 thin films at lower temperature, unlike the ones mentioned in the literature. For this purpose, wet chemical synthesis methods have ...

• Analysis of interface states of Al/DNA/p-Si MIS photovoltaic structures with DNA biomolecules using the conductance technique 

  Güllü, Ömer (Taylor & Francis, 2017-03-29)

  In this study, we report on the calculation of interface charge distribution of metal–interlayer–semiconductor (MIS) photovoltaic diodes containing DNA biomolecules and Si semiconductor based on the conductance technique. ...

• Enerji̇ i̇leti̇m hatlarında Wi̇gner Vi̇lle dağılımı, gri̇ düzey eş oluşum matri̇si̇ ve örüntü tanıma yöntemleri̇ i̇le arıza anali̇zi̇ 

  Ertuğrul, Ömer Faruk; Tağluk, Mehmet Emin; Kaya, Yılmaz (IEEE, 2012-05-30)

  Artan enerji ihtiyacı, enerji iletiminin önemini artırmıştır. Enerjinin kesintisiz iletimi için arızalı iletim hattının iletim sisteminden hızla izole edilmesi gerekmektedir. Yapılan çalışmada enerji iletim hatlarında arıza ...

• Hari̇ci̇ uyartı akımı ve i̇yoni̇k konsantrasyonların Hodgki̇n-Huxley si̇ni̇r modeli̇ üzeri̇ndeki̇ etki̇leri̇ 

  Tekin, Ramazan; Tağluk, Mehmet Emin; Ertuğrul, Ömer Faruk (IEEE, 2012-05-30)

  Hodgkin-Huxley (HH) nöron modeli teorik sinirbilimde çok önemli bir yere sahiptir. Çalışmada HH nöron modelini esas alınarak uyartı akım değerinin ve hücre içi ve dışı iyonik sodyum ve potasyum konsantrasyonlarının ...

• Kortikal bir ağ modelinin çıkış verisindeki karmaşıklık ve uyumluluk analizi 

  Tekin, Ramazan; Tağluk, Mehmet Emin; Ertuğrul, Ömer Faruk; Sezgin, Necmettin (IEEE, 2013-06-13)

  Depending on the complex interconnection of billions of neurons forming cortical network excitation times and the emergence of action potentials or spike trains becomes complex and irregular. The effect of various parameters ...

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