Now showing items 1-4 of 4

    • Broadband optical modulators based on graphene supercapacitors 

      Polat, E. O.; Kocabas, C. (American Chemical Society, 2013)
      Optical modulators are commonly used in communication and information technology to control intensity, phase, or polarization of light. Electro-optic, electroabsorption, and acousto-optic modulators based on semiconductors ...
    • Graphene based optoelectronics in the visible spectrum 

      Polat, Emre Ozan (Bilkent University, 2015)
      Graphene, a two dimensional crystal of carbon atoms, emerges as a viable material for optoelectronics because of its electrically-tunable broadband optical properties. Optical response of graphene at visible and near ...
    • Organic Electrolytes for Graphene-Based Supercapacitor: Liquid, Gel or Solid 

      Kovalska, E.; Kocabas, C. (Elsevier Ltd, 2016)
      The electrolyte is an important and decisive factor in battery, capacitor and supercapacitor fabrication. Here we report how electrolyte's provenance and structure effect on the electro-optical properties of the graphene-based ...
    • ZnO based optical modulator in the visible wavelengths 

      Okyay, A., K.; Aygun L.E.; Oruc F.B. (2013)
      In order to demonstrate tunable absorption characteristics of ZnO, photodetection properties of ZnO based thin-film transistors are investigated. By controlling the occupancy of the trap states, the optical absorption ...