Now showing items 1-5 of 5

    • High-speed solar-blind AlGaN-based metal-semiconductor-metal photodetectors 

      Bıyıklı, Necmi; Kimukin, İbrahim; Kartaloğlu, Tolga; Aytür, Orhan; Özbay, Ekmel (Wiley, 2003)
      Solar-blind AlGaN metal-semiconductor-metal (MSM) photodetectors with fast pulse response have been demonstrated. The devices were fabricated on MOCVD-grown epitaxial Al0.38Ga0.62N layers, using a microwave compatible ...
    • Low-voltage small-size double-arm MEMS actuator 

      Bıyıklı, Necmi; Damgaci, Y.; Cetiner, B.A. (2009)
      The fabrication and characterisation of a double-arm cantilever-type metallic DC-contact MEMS actuator with low pull-down voltage are reported. Bi-layer TiW cantilevers with an internal stress gradient were fabricated using ...
    • Novel microstrip fed mechanically tunable combline cavity filter 

      Kurudere, S.; Erturk, V. B. (IEEE, 2013)
      A novel configuration for mechanically tunable combline bandpass filters is proposed, where the classical resonating rod-tuning screw combination is replaced with a simple printed circuit-tuning screw combination. Moreover, ...
    • Solar-blind AlGaN-based Schottky photodiodes with low noise and high detectivity 

      Bıyıklı, Necmi; Aytur, O.; Kimukin, I.; Tut, T.; Özbay, Ekmel (American Institute of Physics, 2002)
      We report on the design, fabrication, and characterization of solar-blind Schottky photodiodes with low noise and high detectivity. The devices were fabricated on n-/n+ AlGaN/GaN heterostructures using a microwave compatible ...
    • Triangular metallic gratings for large absorption enhancement in thin film Si solar cells 

      Battal, E.; Yogurt, T.A.; Aygun L.E.; Okyay, Ali Kemal (Optical Society of American (OSA), 2012)
      We estimate high optical absorption in silicon thin film photovoltaic devices using triangular corrugations on the back metallic contact. We computationally show 21.9% overall absorptivity in a 100-nmthick silicon layer, ...