Now showing items 1-20 of 20

    • A 3D self-consistent percolative model for AC-DC electrical analysis of carbon nanotubes networks 

      Colasanti S; Bhatt V; Abdelhalim A; Abdellah A; Lugli P (Institute of Electrical and Electronics Engineers Inc., 2015)
      We present a SPICE-based percolative model for the simulation of randomly aligned networks of carbon nanotubes (CNT). The network generation is based on a stochastic algorithm that randomly generates nanotubes over a ...
    • Analysis of sprayed carbon nanotube films on rigid and flexible substrates 

      Robbiano V; Abdellah A; Santarelli L; Falco A; El-Molla S; Titova L; Purschke D; Hegmann F; Cacialli F; Lugli P (Institute of Electrical and Electronics Engineers Inc., 2014)
      We report on the morphological, electrical and optical characteristics of Carbon nanotube (CNT) films on different transparent substrates, obtained using spray deposition. The effect of different substrate materials on the ...
    • Biocompatibility tests on spray coated carbon nanotube and PEDOT:PSS thin films 

      Bhatt V; Melzer K; Abdellah A; Lugli P; Teymouri S; Guttenberg Z (IEEE, 2016)
      Thin films of semiconducting and unsorted carbon nanotubes (CNT) are prepared on a transparent and flexible cyclic olefin polymeric substrate. The CNT biocompatibility is analyzed using L929 mouse fibroblasts and Human ...
    • Carbon nanotube based gas sensor arrays on rigid and flexible substrates 

      Abdelhalim A; Loghin F; Winkler M; Zeiser C; Abdellah A; Lugli P (Institute of Electrical and Electronics Engineers Inc., 2015)
      We report a highly reproducible Carbon nanotube (CNT) based gas sensor arrays, which are able to discriminate between NH3, CO, CO2 and ethanol. Each sensor array is composed of four sensing elements where metallic nanoparticles ...
    • Carbon nanotube based millimeterwave fishnet metamaterials 

      Russer JA; Xiong Y; Abdellah A; Culhaoglu AE; Che W; Lugli P; Russer P (IEEE, 2014)
      Fishnet metamaterials consist of two or more conducting fishnet layers separated by homogeneous dielectric layers. Different from other planar multilayer metamaterial structures fishnet metamaterials do not require vias ...
    • Carbon nanotube based temperature sensors fabricated by large-scale spray deposition 

      Cagatay E; Falco A; Abdellah A; Lugli P (Institute of Electrical and Electronics Engineers Inc., 2014)
      We present high-performance temperature sensors which utilize spray deposited carbon nanotube (CNT) films as the active sensing material. In order to evaluate device performance, the change in device resistance with respect ...
    • Circuit and system implementations of molecular devices 

      Lugli P; Abdellah A; Albert E; Csaba G; Erlen C; Fabel B; Gong Q; Scarpa G; Chan-Park M; Divina P (IEEE, 2009)
      We illustrate a couple of circuit implementations of molecular devices, chosen as representative examples in the growing field of molecular electronics. On the one side, we discuss the performance of organic thin film ...
    • Complex impedance characterization of highly sensitive carbon nanotube gas sensors 

      Abdelhalim A; Abdellah A; Lugli P (Institute of Electrical and Electronics Engineers Inc., 2014)
      Complex impedance spectroscopy is used to characterize carbon nanotube (CNT) based gas sensors under the exposure of different concentrations of NH3 (10 ppm, 25 ppm, 50 ppm and 100 ppm). The characterization is performed ...
    • Electronic transport modeling with HSPICE in random CNT networks 

      Albert E; Abdellah A; Scarpa G; Lugli P (IEEE, 2012)
      A Monte Carlo based computational model was developed to analyze the electrical transport properties in networks of randomly arranged single wall carbon nanotubes. The CNTs are modeled as stiff sticks with a lognormal ...
    • Experimental and computational study on the temperature behavior of CNT networks 

      Colasanti S; Loghin F; Bhatt V; Abdellah A; Lugli P; Robbiano V; Cacialli F (Institute of Electrical and Electronics Engineers Inc., 2016)
      We report on the electrical properties of carbon nanotubes (CNT) networks deposited using spray deposition onto interdigitated gold structures. The properties have been measured experimentally and analyzed using a computational ...
    • Exploring spray technology for the fabrication of organic devices based on poly(3-hexylthiophene) 

      Abdellah A; Baierl D; Fabel B; Lugli P; Scarpa G (IEEE, 2009)
      In order to fully exploit the potential of polymer electronics, large-area/low-cost processing technologies are necessary. In this paper, we investigate the feasibility of air atomizing spray technology for large-area/low-cost ...
    • Fabrication, characterization and modeling of flexible electronic components based on CNT networks 

      Lugli P; Abdellah A; Abdelhalim A; Albrecht A; Becherer M; Cagatay E; Colasanti S; Falco A; Loghin F; El-Molla S; Salmeron J; Rivadeneyra A (IEEE, 2016)
      In this contribution, we will present a modeling approach based on a stochastic algorithm that can generate non-rigid solid objects in a three-dimensional space, emulating with high fidelity the typical fabrication processes ...
    • Integrating CNT force sensors into a multimodal modular electronic skin 

      Cagatay E; Abdellah A; Lugli P; Mittendorfer P; Cheng G (IEEE, 2016)
      This paper presents the integration of a flexible capacitive force sensor based on carbon nanotube (CNT) thin-film with a multi-modal artificial skin cell, which is built on a hexagonal shaped, rigid, printed circuit board ...
    • Organic millimeterwave fishnet metamaterial structures 

      Russer JA; Xiong Y; Abdellah A; Culhaglu AE; Che W; Lugli P; Russer P (IEEE, 2014)
      A possible way for the economic production of three-dimensional metamaterials is based on the use of planar multilayer structures. The fabrication of two-dimensional metamaterial structures will be performed by spray coating ...
    • Pattern generation by using high-resolution nanoimprinting and nanotransfer printing techniques 

      Scarpa G; Harrer S; Abdellah A; Penso-Blanco G; Lugli P; Strobel S; Abstreiter G; Tornow M (IEEE, 2009)
      Nanofabrication is the core task performed and constantly further developed by todays and future semiconductor industry. Optimization of throughput and minimizing process cost and complexity thus increasing fabrication ...
    • Solution-processable random carbon nanotube networks for thin-film transistors 

      Gong Q; Albert E; Fabel B; Abdellah A; Lugli P; Chan-Park M; Scarpa G (IEEE, 2011)
      We report a straightforward process to fabricate carbon nanotube field-effect transistors based on random nanotube networks. This solution-based approach is simple, fast and reliable, which can be applied to printed ...
    • Spray deposition of highly uniform CNT films and their application in gas sensing 

      Abdellah A; Yaqub A; Ferrari C; Fabel B; Lugli P; Scarpa G (IEEE, 2011)
      A significant step towards commercialization of novel CNT electronics involves the development of large-area and high-throughput processes for the fabrication of high quality CNT films. In this article, we demonstrate a ...
    • Spray-coating deposition for large area organic thin-film devices 

      Abdellah A; Baierl D; Fabel B; Lugli P; Scarpa G (CRC Press, 2009)
      We report the implementation and testing of an airbrush coating system for the fabrication of a variety of organic electronic and optoelectronic devices using a commercially available airbrush unit. Our setup was implemented ...
    • Thermal treatment and encapsulation of carbon nanotube based temperature sensors 

      Cagatay E; Abdellah A; Lugli P (IEEE, 2015)
      We present high-performance temperature sensors which utilize spray deposited carbon nanotube (CNT) films as the active sensing material. In order to evaluate the device performance, the change in device resistance with ...
    • Towards the optimization of organic solar cells via controlled morphologies 

      Wang Y; Zhao D; Sun X; Scarpa G; Abdellah A; Exner A; Wiedenmann O; Lugli P (IEEE, 2009)
      We present a combined experimental and theoretical analysis of organic solar cells based on bulk heterojunctions. Our simulation based on a drift-diffusion approach shows that a cell with controlled morphology can lead to ...