Essays about: "trilayer"

Found 5 essays containing the word trilayer.

1. 1. Observing phase changes in real time on ultrathin Iron oxide surfaces

   University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Author : Harald Wallander; [2019]
   Keywords : CO oxidation; platinum; iron oxides; Physics and Astronomy;

   Abstract : Studying catalysts under such non-equilibrium conditions is a step towards approaching more realistic reaction conditions for working catalysts. Reactivity during phase changes of ultra-thin FeO2 films grown on Pt(111) are studied in situ with Ambient Pressure X-ray Photo Emission Spectroscopy and Quadrupole Mass Spectrometry, while running the CO oxidation reaction at 160°C and 0:6 mbar. READ MORE

3. 2. Chemical Vapor Deposition Growth and Density Functional Theory Calculations of Trilayer Graphene

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Mohamed Atwa; [2016]
   Keywords : ;

   Abstract : Density functional theory was employed to investigate the energetics of ABA, ABC, and intermediary stacked phases for both pristine and s-triazine functionalized graphene trilayers. The energy of the ABC-stacked phase relative to the pristine ABA-stacked ground state showed a 94% increase when s-triazine was adsorbed to the graphene surface, confirming previous studies of the ability of s-triazine to facilitate the ABC to ABA phase-transition. READ MORE

4. 3. Patterning of Highly Conductive Conjugated Polymers for Actuator Fabrication

   University essay from Linköpings universitet/Biosensorer och bioelektronik

   Author : Daniel Falk; [2015]
   Keywords : Biosensors; Bioelectronics; Microactuators; Conjugated polymers; Polypyrrole; PEDOT; Soft Lithography; Microcontact printing; Vapor phase polymerization; Drop-on-Demand printing; Photolithography; Lift-off;

   Abstract : Trilayer polypyrrole microactuators that can operate in air have previously been developed. They consist of two outer layers ofthe electroactive polymer polypyrrole (PPy) and one inner layer of a porous poly(vinylidene flouride) (PVDF) membranecontaining a liquid electrolyte. READ MORE

5. 4. Fabrication and Characterization of Individually Addressable Polypyrrole Trilayer Microactuators

   University essay from Biosensorer och bioelektronik; Tekniska högskolan

   Author : Nnamdi Felix Nworah; [2012]
   Keywords : Fabrication; Characterization; Polypyrrole; Electropolymerization; Photolithograph;

   Abstract : Conjugated polymers are organic polymers that can conduct electricity. They undergo a volume change upon redox reaction and can be used as an active material in some micro- actuator system. Micro-actuators are useful in biomedical and electronic application. READ MORE

6. 5. The HPXPS Instrument at MAX-lab : a Powerful Tool for In Situ Catalysis Investigations

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

   Author : Niclas Johansson; [2012]
   Keywords : XPS; LEED; HPXPS; trilayer; FeO; Physics and Astronomy;

   Abstract : A new instrument for near ambient x-ray photoelectron spectroscopy investigations of surfaces has been installed at beamline I511 of the MAX-II electron storage ring at the MAX IV Laboratory. This high pressure x-ray photoelectron spectroscopy instrument is capable of surface chemistry investigations in near ambient pressures using x-ray photoelectron spectroscopy (XPS), a technique that traditionally is limited to ultrahigh vacuum. READ MORE