Browsing by Author "Véliz Noboa, Bremnen Marino"

Now showing items 1-9 of 9

    • Capacitance study of a polystyrene nanoparticle capacitor using impedance spectroscopy 

      Véliz Noboa, Bremnen Marino; Orpella García, Alberto; Bermejo Broto, Sandra (2019-07-19)
      Article
      Open Access
      In this study, a metal-insulator-metal capacitor structure is fabricated using polystyrene nanoparticles. Impedance spectroscopy is used to evaluate the performance of this capacitor in which we found a significant magnitude ...

    • Condution mechanisms and charge trapping control in SiO2 nanoparticle MIM capacitors 

      Bheesayagari, Chenna Reddy; Pons Nin, Joan; Orpella García, Alberto; Véliz Noboa, Bremnen Marino; Bermejo Broto, Sandra; Domínguez Pumar, Manuel (2020-06-20)
      Article
      Open Access
      The objective of this paper is to present a charge trapping control method for MIM capacitors in whichthe dielectric is made of electrospray-deposited silica nanoparticles. The influence of the bias voltage onthe impedance ...

    • Diseño y Fabricación de dispositivos Metal-Aislante-Metal utilizando la técnica Electrospray 

      Véliz Noboa, Bremnen Marino (Universitat Politècnica de Catalunya, 2014-02-27)
      Master thesis
      Open Access
      Anglès: Nowadays there is an interesting grown of the manipulation of matter at the nanometric scale in order to develop new Nano-devices and to make use of theirs nanometric properties. The research group of Micro and ...

    • Impedance modeling of silica nanoparticle metal insulator metal capacitors 

      Véliz Noboa, Bremnen Marino; Bermejo Broto, Sandra; Orpella García, Alberto; Castañer Muñoz, Luis María (2018-08-01)
      Article
      Open Access
      In this study, we have fabricated metal-insulator-metal (MIM) capacitors where the insulator layer is made of 255¿nm diameter silica nanospheres. The MIM devices have been characterized and modeled by electrochemical ...

    • Impedance spectroscopy interpretation of silica and polystyrene colloidal suspensions 

      Véliz Noboa, Bremnen Marino; Orpella García, Alberto; Domínguez Pumar, Manuel; Bermejo Broto, Sandra (2020-03-01)
      Article
      Open Access
      Impedance spectroscopy differences between colloidal 295-nm silica and 300-nm polystyrene nanoparticles in deionized water are analyzed in this work. Using two different two-electrode measurement setups, designed for this ...

    • Improving a nozzle tip with a guard ring for an electrospray system 

      Véliz Noboa, Bremnen Marino; Bermejo Broto, Sandra; Castañer Muñoz, Luis María (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      The Electrospray technique allows the formation of small droplets from aqueous solutions that may contain nanoparticles of different materials in suspension, leading to the deposition of layers of the nanoparticles. The ...

    • Large area deposition of ordered nanoparticle layers by electrospray 

      Véliz Noboa, Bremnen Marino; Bermejo Broto, Sandra; Vives, Jordi; Castañer Muñoz, Luis María (2018-07-01)
      Article
      Open Access
      Mass production of ordered nanostructures with enhanced optical properties such as colloidal crystals for applications such as solar cells or organic light emitted diodes demands low-cost and large-scale manufacturing ...

    • Metal-insulator-metal capacitor using electrosprayed nanoparticles 

      Véliz Noboa, Bremnen Marino; Bermejo Broto, Sandra; Coll Valentí, Arnau; Castañer Muñoz, Luis María (2014-07-07)
      Article
      Restricted access - publisher's policy
      An electrospray technique has been used to deposit SiO2 nanoparticles as insulator layer of a metal-insulator-metal device. Impedance spectroscopy measurements show that a 4.4 factor increase in capacitance is achieved ...

    • Novel metal insulator metal capacitors based on electrosprayed colloidal nanoparticles 

      Véliz Noboa, Bremnen Marino (Universitat Politècnica de Catalunya, 2020-01-30)
      Doctoral thesis
      Open Access
      This work develops a novel capacitor device based on the use of nanotechnology. The device starts from the exiting metal-insulator-metal (MIM) concept, but instead of a continuous insulator layer, dielectric nanoparticles ...