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Recent Submissions

NA65(DsTau): study of tau neutrino production in p-A interactions Güler, Ali Murat (2024-03-22) The DsTau (NA65) experiment at CERN was proposed to measure an inclusive differential cross-section of Ds production in p-A interactions. As this process is a main source of tau neutrino production, its study is necessary ...
The SND@LHC experiment at CERN Güler, Ali Murat (2024-03-22) SND@LHC is proposed to exploit the high flux of energetic neutrinos of all flavours from the LHC in a hitherto unexplored pseudo-rapidity region of 7.2 < η < 8.4, complementary to all the other experiments at the LHC. The ...
EFFECT OF DIFFERENT MODELLING APPROACHES FOR SIMULATION OF ATMOSPHERIC PRESSURE GLOW DISCHARGES IN HELIUM EYLENCEOĞLU, ENDER; Rafatov, İsmail; Islamov, Gubad; YEŞİL, CİHAN (2023-08-31)
EFFECT OF THE CATHODE SURFACE TEMPERATURE ON THE CATHODE FALL LAYER PARAMETERS EYLENCEOĞLU, ENDER; Islamov, Gubad; Rafatov, İsmail (2023-08-31)
The effect of SiNx:H stoichiometry on electrical and chemical passivation of Al2O3/SiNx:H stack layer on p-type silicon wafers Canar, Hasan Hüseyin; Bektaş, Gence; Keçeci, Ahmet Emin; Asav, Hasan; Bütüner, Sümeyye Koçak; Arlkan, Bülent; Turan, Raşit (2023-06-27) In this paper, we report on the influence of SiNx:H stoichiometry on Al2O3/SiNx:H passivation stacks. We analyze the fabricated dielectric layers with four methods: FTIR, C-V, PCD and EQE. SiNx:H with a lower refractive in...
Silicon heterojunction solar cell efficiency improvement with wide optical band gap amorphous silicon carbide emitter Salimi, Arghavan; Dönerçark, Ergi; Koç, Mehmet; Turan, Raşit (2023-06-27) Boron doped hydrogenated amorphous silicon carbide (a-SiC:H) thin films are deposited by using 13.56 MHz plasma enhanced chemical vapor deposition as an emitter layer for SHJ solar cells. By changing different deposition p...
Optimization of front and rear surface dielectric passivation layers for ion implanted PERC solar cells Bektaş, Gence; Canar, Hasan Hüseyin; Keçeci, Ahmet Emin; Asav, Hasan; Seyrek, Selin; Bütüner, Sümeyye Koçak; Turan, Raşit (2023-06-27) Ion implantation is an alternative doping method providing a controlled emitter profile and manufacturing simplicity for PERC solar cells. SiNx:H and SiOxNy:H layers deposited by the PECVD system are common dielectric laye...
VULNERABILITY OF ECONOMIC SECTORS TO GEOMAGNETIC STORMS AND MITIGATION STRATEGIES Demirköz, Melahat Bilge; Karagöz, G.; Kadloǧlu, Y.K.; Sözeri, H. (2023-04-21) Solar storms and CMEs increase the amount of radiation that reaches the Earth and can perturb the magnetic shielding of the Earth. K and Kp indices quantify this perturbation by using magnetometers calibrated accordingly t...
Nanosecond Laser-Induced Micro-Modifications in Bulk of Crystal Silicon Kadan, Viktor; Pavlova, Svitlana; Bek, Alpan; Aydin, Yavuz; Blonskyi, Ivan; Pavlov, Ihor (2023-01-01) 3D modifications of crystalline Si (c-Si) by nano-, pico-, or femtosecond lasers at 1550 nm-wavelength are under intensive studies nowadays due to the wide range of potential applications in photonics and optoelectronics [...
Propagation of Laguerre-Gaussian Modes at Millimeter-wave through Scattering Media Dogru, Sebnem; Altan, Hakan; ŞAHİN, ASAF BEHZAT (2023-01-01) This work consists of the generation of free-space Laguerre-Gaussian (LG) modes at millimeter-wave frequencies by use of a 3D-printed spiral phase plate and measuring the transmission capability of LG beams with respect to...
Fast and sensitive MMW imaging system with up-conversion readout working in the NIR Zone Kurup, Arun Ramachandra; Rozban, Daniel; Kopeika, Natan S.; Yitzhaky, Yitzhak; Altan, Hakan; Abramovich, Amir (2023-01-01) Focal plane arrays (FPA) constructed using glow discharge detectors (GDD) as the pixel elements proved to be an inexpensive methodology for generating MMW (millimeter wave)/THz (terahertz) images. In the abnormal glow mode...
Evaluation of performance of an active terahertz imaging system for concealed face recognition Yıldırım, İhsan Ozan; Doğru, Şebnem; ŞAHİN, ASAF BEHZAT; Altan, Hakan (2023-01-01) One of the most important problems encountered by face recognition systems is occlusions. Especially with the COVID-19 pandemic, recognition of masked faces has been attracting interest. There are proposed visible spectrum...
Zirconium Oxide As Electron-Selective Contacts For N-type Crystalline Silicon Solar Cells Madbouly, Loay; Nasser, Hisham; Borra, Mona Zolfaghari; Çiftpınar, Emine Hande; Aliefendioğlu, Ateşcan; Canar, Hasan Hüseyin; Turan, Raşit; Ünalan, Hüsnü Emrah (2022-12-03)
Trends in AgriPV: Device physics and photonics perspectives Yerci, Selçuk (2022-11-30)
Chaos in Matrix Gauge Theories with Massive Deformations Başkan, K.; Kürkcüoğlu, Seçkin; Oktay, O.; Taşcı, Cankut (2022-11-23) Starting from an SU(N) matrix quantum mechanics model with massive deformation terms and by introducing an ansatz configuration involving fuzzy four- and two-spheres with collective time dependence, we obtain a family of e...
Uses of Killing and Killing-Yano Tensors Lindström, Ulf; Sarıoğlu, Bahtiyar Özgür (2022-11-23) In this contribution we have collected some facts about Killing and Killing-Yano tensors that we feel are of general interest for researchers working on problems that rely on differential geometry. We also include some of ...
Jeomanyetik Fırtınalar, Gözlemevleri ve Ülkemizde Jeomanyetik KP İndisinin Hesaplanması Demirköz, Melahat Bilge; KARAGÖZ, GÜLCE; KADIOĞLU, YUSUF KAĞAN; SÖZERİ, HÜSEYİN; ÖCAL, SULTAN EYLÜL (2022-11-18)
Empowering Photovoltaics via Smart Light Management Technologies Yerci, Selçuk (2022-11-17)
Detection and recognition of concealed faces using a 340 GHz imaging system YILDIRIM, İHSAN OZAN; ŞAHİN, ASAF BEHZAT; Altan, Hakan (2022-10-28) Biometric recognition and surveillance systems based on visible band imaging cameras encounter a number of limitations such as the effects of lighting conditions and occlusions. As a result, there is an interest in beyond ...
Picometer-Resolution Single-Pixel Spectrometer Across Scattering Media Kürekci, Şahin; Kahraman, S. Süleyman; Yüce, Emre (2022-09-09) When light passes through a multimode fiber, two-dimensional random intensity patterns are formed due to the complex interference within the fiber. The extreme sensitivity of the speckle patterns to the frequency of lig...

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