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  1. No Access

    Article

    ZnO Nanostructures on Electrospun Nanofibers by Atomic Layer Deposition/Hydrothermal Growth and Their Photocatalytic Activity

    A hierarchy of nanostructured-ZnO was fabricated on the electrospun nanofibers by atomic layer deposition (ALD) and hydrothermal growth, subsequently. Firstly, we produced poly(acrylonitrile) (PAN) nanofibers ...

    Fatma Kayaci, Sesha Vempati, Cagla Ozgit-Akgun… in MRS Online Proceedings Library (2014)

  2. No Access

    Article

    Preparation of Al2O3 and AlN Nanotubes by Atomic Layer Deposition

    Al2O3 and AlN nanotubes were fabricated by depositing conformal thin films via atomic layer deposition (ALD) on electrospun nylon 66 (PA66) nanofiber templates. Depositions were carried out at 200°C, using trimet...

    Cagla Ozgit, Fatma Kayaci, Inci Donmez, Engin Cagatay… in MRS Online Proceedings Library (2012)

  3. No Access

    Article

    Solar-Blind AlGaN-based Schottky Photodiodes With High Detectivity and Low Noise

    We report on the design, fabrication and characterization of solar-blind Schottky photodiodes with high detectivity and low noise. The devices were fabricated on n-/n+ AlGaN/GaN hetero-structures using a microwav...

    Necmi Biyikli, Orhan Aytur, Ibrahim Kimukin, Turgut Tut… in MRS Online Proceedings Library (2011)

  4. No Access

    Article

    High-Speed Solar-Blind AlGaN Schottky Photodiodes

    We report high-speed solar-blind AlGaN-based Schottky photodiodes. AlGaN/GaN heterostructure device layers were grown on sapphire substrate. The devices were fabricated on AlGaN/GaN heterostructuresusing a mic...

    Necmi Biyikli, Ibrahim Kimukin, Tolga Kartaloglu… in MRS Online Proceedings Library (2011)

  5. No Access

    Article

    High-Performance AlGaN-Based Visible-Blind Resonant Cavity Enhanced Schottky Photodiodes

    We have designed, fabricated and tested resonant cavity enhanced visible-blind AlGaN-based Schottky photodiodes. The bottom mirror of the resonant cavity was formed with a 20 pair AlN/AlGaN Bragg mirror. The d...

    Ibrahim Kimukin, Necmi Biyikli, Tolga Kartaloglu… in MRS Online Proceedings Library (2011)

  6. No Access

    Article

    Persistent Photoconductivity in High-mobility AlxGa1−xN/AlN/GaN Heterostructures Grown by Metal-organic Vapor-phase Epitaxy

    We report on the persistent photoconductivity (PPC) effect in AlxGa1−xN/AlN/GaN heterostructures with two different Al compositions (x=0.15 and 0.25). The two-dimensional electron gas (2DEG) was characterized by ...

    Necmi Biyikli, Umit Ozgur, **anfeng Ni, Yi Fu… in MRS Online Proceedings Library (2007)

  7. Article

    High-Performance Solar-Blind AlGaN Schottky Photodiodes

    High-performance solar-blind AlGaN-based Schottky photodiodes have been demonstrated. The detectors were fabricated on MOCVD-grown AlGaN/GaN hetero-structures using a microwavecompatible fabrication process. C...

    Necmi Biyikli, Tolga Kartaloglu, Orhan Aytur… in MRS Internet Journal of Nitride Semiconduc… (2003)

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  8. Article

    High-Speed Visible-Blind Resonant Cavity Enhanced AlGaN Schottky Photodiodes

    We have designed, fabricated and tested resonant cavity enhanced visible-blind AlGaN-based Schottky photodiodes. The bottom mirror of the resonant cavity was formed with a 20 pair AlN/Al0 2Ga0.8N Bragg mirror. Th...

    Necmi Biyikli, Tolga Kartaloglu, Orhan Aytur… in MRS Internet Journal of Nitride Semiconduc… (2003)

    Download PDF (454 KB) View Article