Concept

Film theory

Related publications (50)

Pore-Filling of Spiro-OMeTAD in Solid-State Dye Sensitized Solar Cells: Quantification, Mechanism, and Consequences for Device Performance

Michael Graetzel, Nicolas Tétreault, Jérémie Minh-Châu Brillet

In this paper, the pore filling of spiro-OMeTAD (2,2',7,7'-tetrakis-(N,N-di-p-methoxyphenylamine)9,9'-spirobifluorene) in mesoporous TiO2 film is quantified for the first time using XPS depth profiling and UV-Vis absorption spectroscopy. It is shown that s ...

2009

The macroscopic delamination of thin films from elastic substrates

Pedro Miguel Nunes Pereira de Almeida Reis

The wrinkling and delamination of stiff thin films adhered to a polymer substrate have important applications in “flexible electronics.” The resulting periodic structures, when used for circuitry, have remarkable mechanical properties because stretching or ...

2009

Sensing Mechanisms for Carbon Nanotube Based NH3 Gas Detection

Nicola Marzari

There has been an argument on carbon nanotube (CNT) based gas detectors with a field-effect transistor (FET) geometry: do the response signals result from charge transfer between adsorbed gas molecules and the CNT channel and/or from the gas species induce ...

2009

3D-ITIES supported on porous reticulated vitreous carbon

Hubert Girault, Bin Su, Mohamad Hojeij, Nicolas Eugster

A thin aqueous film prepared by layer-by-layer assembly of oppositely charged polypeptides on 4-aminobenzoic acid modified porous reticulated vitreous carbon (RVC) electrodes was used with the aim of forming a 3D-ITIES. The film containing a redox mediator ...

2007

Characterization of Permalloy films on high-bandwidth striplines

Dirk Grundler

We have deposited a Permalloy film on top of a microstripline structure. The ferromagnetic properties of the Permalloy film are analyzed by means of the magneto-optical Kerr effect. We measure the effect of local magnetic fields generated by constant and p ...

Elsevier2004

Coherent grazing exit x-ray scattering geometry for probing the structure of thin films

We demonstrate a diffraction geometry which provides strong sensitivity to the microstructure of thin films. While a coherent beam of X-rays is being reflected from the surface of the sample, measurements were made of the scattering of the exit beam below ...

2004

Oscillatory fracture paths in thin elastic sheets

Pedro Miguel Nunes Pereira de Almeida Reis

We report a novel mode of quasi-static oscillatory crack propagation when a cutting tip of moderately large width is driven through a thin brittle polymer film. Experiments show that the amplitude and wavelength of the oscillatory crack paths scale linearl ...

Elsevier2003

Shift of phase transition temperature in strontium titanate thin films

Nava Setter, Alexander Tagantsev, Konstantin Astafiev

The results of structural and electrical characterizations of SrTiO3 thin films deposited onto MgO and LaAlO3 substrates by pulsed laser deposition technique are presented. The influence of substrate and annealing procedure on the crystalline structure and ...

2003

Electrochemical Micromachining of Titanium through a Laser Patterned Oxide Film

Patrik Willi Hoffmann, Dieter Landolt

Selective dissolution of titanium through a laser patterned oxide film has been achieved in a 3M sulfuric acid-methanol electrolyte. The 250 nm thick oxide film was formed anodically on a flat titanium surface in 0.5 M sulfuric acid. The patterning of the ...

2001

Charge transport in nanostructured thin-film electrodes

Ulf Anders Hagfeldt

A review. Recent work on the charge transport in mesoscopic nanostructured film electrodes is summarized. Results from intensity-modulated photocurrent spectroscopy (IMPS) and intensity-modulated photovoltage spectroscopy (IMVS) studies are given, and the ...

Wiley-VCH Verlag GmbH2001

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