Yazar "Tatar, Beyhan" için listeleme
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Alternative approach for determination of energy band gap of semiconductors through electrical analysis
Özdemir, Orhan; Tatar, Beyhan; Yılmazer, Deneb; Gökdemir, Pınar; Ürgen, Mustafa; Kutlu, Kubilay (2010)Traditional way of extracting energy band gap (EG) of semiconductors from UV-Visible transmisson measurement becomes difficult once EG lies below than 1 eV. Instead of optical excitation of electrons from valance to ... -
Correlation of DC and AC electrical properties of Al/p-Si structure by I-V-T and C(G/omega)-V-T measurements
Özdemir, Orhan; Tatar, Beyhan; Yılmazer, Deneb; Gökdemir, Pınar; Kutlu, Kubilay (Elsevier Sci Ltd, 2009)Current-voltage-temperature and admittance-gate bias-temperature measurements were performed on Al/p-Si structure to investigate transport and storage properties. In forward direction of former measurement, three distinct ... -
Electrical properties of FePc organic semiconductor thin films obtained by CSP technique for photovoltaic applications
Tatar, Beyhan; Demiroğlu, Dilek (Elsevier Sci Ltd, 2015)Iron-phthalocyanine (FePc) organic semiconductor thin films were prepared on Corning glass and c-Si substrates at a substrate temperature of 150 degrees C by a chemical spray pyrolysis (CSP) technique. The structural ... -
Excess Capacitance Due to Minority Carrier Injection in CrSi2/p-Type Crystalline Si Isotype Junction
Özdemir, Orhan; Yılmazer, Deneb; Tatar, Beyhan; Ürgen, Mustafa; Kutlu, Kubilay (Iop Publishing Ltd, 2010)Excess current and capacitance phenonema were observed for the first time on a CrSi2/p-type crystalline silicon junction produced by cathodic arc physical vapor deposition. The heterojunction was investigated by ... -
Fotovoltaik Uygulamalar için GLAD Tekniği ile Büyütülen Spiral Nano Şekilli a-Si İnce Filmlerin Elektriksel ve Yapısal Özelliklerinin İncelenmesi
Tatar, Beyhan (2017)Spiral nano şekilli a-Si ince filmler c-Si altlıklar üzerine elektron demeti buharlaştırma sistemi içerisinde GLAD tekniği kullanılarak hazırlanmıştır. Spiral nano şekilli ince filmlerin yapısal özellikleri X-ışınları ... -
GLAD Tekniği ile Büyütülen Zig-Zag Nano Şekilli a-Si/c-Si Heteroeklemlerin Elektriksel ve Fotovoltaik Özelliklerinin İncelenmesi
Tatar, Beyhan (2017)Zig-zag nano şekilli a-Si ince filmler c-Si altlıklar üzerine elektron demeti buharlaştırma sistemi içerisinde GLAD tekniği kullanılarak hazırlanmıştır. Zig-zag nano şekilli ince filmlerin yapısal özellikleri X-ışınları ... -
Improvement in electrical and photovoltaic properties of a-Si/c-Si heterojunction with slanted nano-columnar amorphous silicon thin films for photovoltaic applications
Tatar, Beyhan; Demiroğlu, Dilek; Kazmanlı, K.; Ürgen, Mustafa (Elsevier Science Bv, 2015)The flat a-Si and slanted nanocolumnar (S-nC) a-Si thin films were prepared on c-Si and corning glass substrates by e-beam physical vapor deposition (EB-PVD) technique. The structural properties of all the grown thin films ... -
The influence of Er3+ doping on the structural and optical properties of CeO2 thin films grown by PED
Tatar, Beyhan; Gökdemir, Fatma Pınar; Pehlivan, Esat; Ürgen, Mustafa (Elsevier Science Bv, 2013)Erbium doped CeO2 thin films were deposited on both Corning glass substrates and indium doped tin oxide (ITO) coated glass substrates by pulsed e-beam deposition (PED) method at room temperature. Structural features of Er ... -
Investigation of structural and electrical properties of flat a-Si/c-Si heterostructure fabricated by EBPVD technique
Demiroğlu, Dilek; Tatar, Beyhan; Kazmanli, K.; Ürgen, Mustafa (American Institute of Physics Inc., 2013)Flat amorphous silicon - crystal silicon (a-Si/c-Si) heterostructure were prepared by ultra-high vacuum electron beam evaporation technique on p-Si (111) and n-Si (100) single crystal substrates. Structural analyses were ... -
Investigation of structural and electrical properties of p-CuPc/c-Si and p-CuPc/a-Si/c-Si hybrid photodiodes prepared by CSP technique
Tatar, Beyhan; Demiroğlu, Dilek; Ürgen, Mustafa (Elsevier Science Bv, 2014)To produce p-CuPc/c-Si and p-CuPc/a-Si/c-Si heterojunctions, at first, amorphous silicon thin film was deposited on p-Si (111) and n-Si (100) single crystalline substrates by high vacuum electron beam evaporation technique. ... -
Kimyasal Sprey Püskürtme Tekniği ile Üretilen FePc ve CuPc Organik Yarıiletken Filmlerin Sentezlenmesi ve Elektriksel Özelliklerinin Belirlenmesi
Tatar, Beyhan (Namık Kemal Üniversitesi, 2016)Elektronik uygulamalarda özellikle fotovoltaik aygıtlar için organik yarıiletken malzemeler son yıllarda oldukça önem kazanan bir malzeme grubudur. Ftalosiyaninler (Pc) ise bu açıdan organik malzemeler içinde önemli bir ... -
Paslanmaz çelik levha üretiminde kullanılan asitleme işlemleri için alternatif bir proses tasarımı ve optimizasyonu
Ay, Onur (Tekirdağ Namık Kemal Üniversitesi, 2022)Her yıl katlanarak büyüyen endüstriyel teknolojiler kullanılan kaynak tüketimini ve enerji ihtiyacını da beraberinde fazlasıyla arttırmıştır, bu durum; daha az kaynak kullanarak, daha düşük maliyetlerde daha fazla üretim ... -
Structural and photovoltaic properties of a-Si (SNc)/c-Si heterojunction fabricated by EBPVD technique
Demiroğlu, Dilek; Tatar, Beyhan; Kazmanli, K.; Ürgen, Mustafa (American Institute of Physics Inc., 2013)In last two decades sculptured thin films are very attractive for researches. Some properties of these thin films, like high porosity correspondingly high large surface area, controlled morphology; bring into prominence ... -
Structure and photovoltaic properties of Ag/p-CuPc/a-Si/c-Si/Ag organic-inorganic hybrid heterojunction fabricated by chemical spray pyrolysis technique
Tatar, Beyhan; Demiroğlu, Dilek; Ürgen, Mustafa (Elsevier Science Bv, 2013)This investigation refers to the fabrication of an organic-inorganic hybrid heterojunction photovoltaic device. Heterojunctions PV devices were fabricated by growing p-type organic CuPc films onto inorganic amorphous silicon ... -
Transport and storage properties of CrSi2/Si junctions made using the CAPVD technique
Menda, Ugur Deneb; Özdemir, Orhan; Tatar, Beyhan; Ürgen, Mustafa; Kutlu, Kubilay (Elsevier Sci Ltd, 2010)p-CrSi2/n-crystSi and p-CrSi2/p-crystSi hetero junctions produced by cathodic arc physical vapor deposition were worked out by means of capacitance-voltage-temperature (C-V-T) and current-voltage-temperature (I-V-T) ...