Yazar "Duman, Songül" için listeleme
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The effect of Sn doping Urbach Tail and optical absorbtion measurements of InSe crystal
Duman, Songül; Gürbulak, Bekir; Doǧan, Seydi; Özçelik, Fikriye Şeyma (Institute of Physics Publishing, 2016)InSe and n-InSe:Sn crystals grown by Bridgman-Stockbarger method. Absorption measurements have been carried out in InSe and InSe:Sn samples in the temperature range 10-320 K with a step of 10 K. Sn doping to InSe have ... -
Fabrication and characterization of Al/Cu2ZnSnS4/n-Si/Al heterojunction photodiodes
Turgut, Güven; Keşkenler, Eyüp Fahri; Aydın, Serdar; Doğan, Seydi; Duman, Songül; Özçelik, Şeyma; Gürbulak, Bekir; Esen, Bayram (Wıley-V C H Verlag Gmbh,, 2014)Cu2ZnSnS4 (CZTS) thin film has been synthesized by a sol-gel spin-coating technique on the n-Si substrate to fabricate heterojunction photodiodes. An X-ray diffraction study has shown that the film is polycrystalline with ... -
Growth and characterization of Ag/n-ZnO/p-Si/Al heterojunction diode by sol-gel spin technique
Keskenler, Eyüp Fahri; Tomakin, Murat; Doǧan, Seydi; Turgut, Güven; Aydın, Serdar; Duman, Songül; Gürbulak, Bekir (Elsevier Science Bv, 2013)Polycrystalline ZnO thin film was obtained on the p-Si for the heterojunction diode fabrication by sol-gel method. X-ray diffraction study showed that the texture of the film is hexagonal with a strong (002) preferred ... -
Lutentium incorporation influence on ZnO thin films coated via a sol-gel route: spin coating technique
Turgut, Güven; Duman, Songül; Özçelik, Fikriye Şeyma; Gürbulak, B.; Doğan, Seydi (Springer, 2016)Pure and lutetium (Lu) incorporated zinc oxide (ZnO) thin films were deposited by a sol-gel route. The effect of Lu contribution on the properties of ZnO was examined in detail by means of XRD, AFM, SEM, UV-Vis spectrophotometer, ... -
Neural network estimations of annealed and non-annealed Schottky diode characteristics at wide temperatures range
Doğan, Hülya; Duman, Songül; Torun, Yunis; Akkoyun, Serkan; Doğan, Seydi; Atıcı, Uğur (Elsevier Sci Ltd, 2022)In this study, Artificial Neural Network (ANN) model has been proposed to characterize the annealed and the non-annealed Schottky diode from experimental data. The experimental current values of Ni/n-type 6H–SiC Schottky ... -
Structural characterizations and optical properties of inse and inse:ag semiconductors grown by bridgman/stockbarger technique
Gürbulak, Bekir; Sata, Mehmet; Doğan, Seydi; Duman, Songül; Ashkhasi, Afsoun; Keşkenler, E. Fahri (Elsevier Science Bv, 2014)Undoped InSe and Ag doped InSe (InSe:Ag) single crystals have been grown by using the Bridgman/Stockbarger method. The freshly cleaved crystals have mirror-like surfaces even without using mechanical treatment. The structure ... -
A study on characterization of Al/ZnS/p-Si/Al heterojunction diode synthesized by sol-gel technique
Turgut, Güven; Keskenler, Eyüp Fahri; Aydın, Serdar; Doğan, Seydi; Duman, Songül; Sönmez, Erdal; Esen, Bayram; Düzgün, Bahattin (Elsevier Science BV, 2013)In this paper, we investigated the morphological, optical and electrical properties of sol-gel spin coated ZnS film and device performance of fabricated Al/ZnS/p-Si/Al heterojunction diode. AFM images showed that surface ... -
Thermal sensitivity and barrier height inhomogeneity in thermally annealed and un-annealed Ni/n-6H-SiC schottky diodes
Duman, Songül; Türüt, Abdülmecit; Doğan, Seydi (Elsevier Science SA, 2022)The Ni/n-6 H-SiC Schottky barrier diodes (SBDs) have been fabricated. Then, they have been thermally annealed at 700 degrees C for 2 min. Their forward bias voltage versus measurement temperature (V-T) curves in 100-500 K ...
