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      Comparison of trimethylgallium and triethylgallium as "ga" source materials for the growth of ultrathin GaN films on Si (100) substrates via hollow-cathode plasma-assisted atomic layer deposition 

      Alevli, M.; Haider A.; Kizir S.; Leghari, S. A.; Bıyıklı, Necmi (AVS Science and Technology Society, 2016-02)
      GaN films grown by hollow cathode plasma-assisted atomic layer deposition using trimethylgallium (TMG) and triethylgallium (TEG) as gallium precursors are compared. Optimized and saturated TMG/TEG pulse widths were used ...
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      Enhanced photoresponse of conformal TiO2/Ag nanorod array-based Schottky photodiodes fabricated via successive glancing angle and atomic layer deposition 

      Haider A.; Cansizoglu, H.; Cansizoglu, M. F.; Karabacak, T.; Okyay, Ali Kemal; Bıyıklı, Necmi (AVS Science and Technology Society, 2015)
      In this study, the authors demonstrate a proof of concept nanostructured photodiode fabrication method via successive glancing angle deposition (GLAD) and atomic layer deposition (ALD). The fabricated metal-semiconductor ...
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      Performance enhancement of GaN metal-semiconductor-metal ultraviolet photodetectors by insertion of ultrathin interfacial HfO2 layer 

      Kumar, M.; Tekcan, B.; Okyay, Ali Kemal (AVS Science and Technology Society, 2015)
      The authors demonstrate improved device performance of GaN metal-semiconductor-metal ultraviolet (UV) photodetectors (PDs) by ultrathin HfO2 (UT-HfO2) layer on GaN. The UT-HfO2 interfacial layer is grown by atomic layer ...
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      Enhanced Performance of Nanowire-Based All-TiO2 Solar Cells using Subnanometer-Thick Atomic Layer Deposited ZnO Embedded Layer 

      Ghobadi, A.; Yavuz, H. I.; Ulusoy, T. G.; Icli, K. C.; Ozenbas, M.; Okyay, Ali Kemal (Pergamon Press, 2015)
      In this paper, the effect of angstrom-thick atomic layer deposited (ALD) ZnO embedded layer on photovoltaic (PV) performance of Nanowire-Based All-TiO2 solar cells has been systematically investigated. Our results indicate ...
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      Zno nanostructures via hydrothermal synthesis on atomic layer deposited seed-layers 

      Orlov, A.; Ulianova, V.; Bogdan, O.; Pashkevich, G.; Bıyıklı, Necmi; Goldenberg, Eda; Haider, Ali (IEEE, 2015)
      The original results of two different types of ZnO nanostructures grown via hydrothermal synthesis on ZnO seed-layers coated by atomic layer deposition process on Si substrates were presented. Scanning electron microscopy ...
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      Low-temperature grown wurtzite InxGa1−xN thin films via hollow cathode plasma-assisted atomic layer deposition 

      Haider A.; Kizir S.; Ozgit Akgun, C.; Goldenberg, E.; Leghari, S. A.; Okyay, Ali Kemal; Bıyıklı, Necmi (Royal Society of Chemistry, 2015-08)
      Herein, we report on atomic layer deposition of ternary InxGa1−xN alloys with different indium contents using a remotely integrated hollow cathode plasma source. Depositions were carried out at 200 °C using organometallic ...
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      Capacitance-conductance-current-voltage characteristics of atomic layer deposited Au/Ti/Al2O3/n-GaAs MIS structures 

      Turut, A.; Karabulut, A.; Ejderha, K.; Bıyıklı, Necmi (Elsevier Ltd, 2015)
      We have studied the admittance and current–voltage characteristics of the Au/Ti/Al2O3/nGaAs structure. The Al2O3 layer of about 5 nm was formed on the n-GaAs by atomic layer deposition. The barrier height (BH) and ideality ...
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      Metal-semiconductor-metal ultraviolet photodetectors based on gallium nitride grown by atomic layer deposition at low temperatures 

      Tekcan, B.; Ozgit Akgun, C.; Bolat, S.; Bıyıklı, Necmi; Okyay, Ali Kemal (SPIE, 2014)
      Proof-of-concept, first metal-semiconductor-metal ultraviolet photodetectors based on nanocrystalline gallium nitride (GaN) layers grown by low-temperature hollow-cathode plasma-assisted atomic layer deposition are ...
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      Silicon nanoparticle charge trapping memory cell 

      El-Atab, N.; Ozcan, A.; Alkis, S.; Okyay, Ali Kemal; Nayfeh, A. (Wiley-VCH Verlag, 2014)
      A charge trapping memory with 2 nm silicon nanoparticles (Si NPs) is demonstrated. A zinc oxide (ZnO) active layer is deposited by atomic layer deposition (ALD), preceded by Al2O3 which acts as the gate, blocking and ...
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      Low temperature atomic layer deposited ZnO photo thin film transistors 

      Oruc, F. B.; Aygun, L. E.; Donmez, I.; Bıyıklı, Necmi; Okyay, Ali Kemal; Yu, H. Y. (AVS Science and Technology Society, 2014)
      ZnO thin film transistors (TFTs) are fabricated on Si substrates using atomic layer deposition technique. The growth temperature of ZnO channel layers are selected as 80, 100, 120, 130, and 250°C. Material characteristics ...
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      AuthorBıyıklı, Necmi (23)Okyay, Ali Kemal (15)Uyar, Tamer (11)Ozgit Akgun, C. (10)Vempati S. (8)Donmez, I. (6)Haider A. (6)Kayaci, F. (5)Bolat, S. (4)Haider, Ali (4)... View MoreKeywords
      Atomic layer deposition (36)
      Deposition (20)Zinc oxide (14)Pulsed laser deposition (8)Thin films (8)X ray diffraction (8)Gallium nitride (7)Nanofibers (7)Temperature (7)X ray photoelectron spectroscopy (7)... View MoreDate Issued2015 (13)2014 (10)2016 (7)2018 (3)2017 (1)2019 (1)2020 (1)TypeArticle (30)Conference Paper (5)Review (1)Has File(s)Yes (36)

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