Centro Coating Csmt Gestione Scarl

Brescia, Italy

Centro Coating Csmt Gestione Scarl

Brescia, Italy
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Ali M.,University of Camerino | Abbas M.,Linz Institute for Organic Solar Cells | Shah S.K.,University of Camerino | Bontempi E.,University of Brescia | And 3 more authors.
Journal of Applied Physics | Year: 2011

Structural and electronic properties of homogeneous poly(3-hexylthiophene) (P3HT) films obtained from the electro-spray method were presented by means of grazing incidence x-ray diffraction, atomic force microscopy, optical absorption, photoelectron spectroscopy, and (photo)electrical conductivity. Starting from different solution concentrations and flow rate conditions, differently assembled thin films were obtained whose physical properties were peculiarly different from those ones obtained by other deposition methods. If properly refined, the method could in principle broaden the spectrum of the existing nano and microscale structures of the P3HT thin films. © 2011 American Institute of Physics.


Braga A.,CNR Institute of Acoustics and Sensors Orso Mario Corbino | Braga A.,Italian Institute of Technology | Baratto C.,CNR Institute of Acoustics and Sensors Orso Mario Corbino | Bontempi E.,University of Brescia | And 2 more authors.
Thin Solid Films | Year: 2014

A reliable transparent front contact of cadmium stannate (CTO) and titanium oxide (TiO2) entirely deposited by magnetron sputtering has been studied and applied to build standard dye-sensitized solar cell. CTO gives very high average optical transmittance (Tavg ≥ 90%) along with competitive sheet resistance (Rsheet ≤ 15 Ω/sq), while a very thin layer of TiO2 (thickness < 5 nm) acts as buffer layer to prevent charge recombination. The matched materials allow achievement of good performances of the cells, in terms of short circuit current and power conversion efficiency. UV-visible spectrophotometry, glancing incident X-rays diffraction and X-rays reflectivity techniques were used to characterize thin films before cell realization; sealed solar cells were tested under simulated solar irradiance at 1 Sun to determine functional properties. © 2013 Elsevier B.V.


Braga A.,Italian Institute of Technology | Braga A.,CNR Institute of Acoustics and Sensors Orso Mario Corbino | Baratto C.,CNR Institute of Acoustics and Sensors Orso Mario Corbino | Colombi P.,Centro Coating Csmt Gestione Scarl | And 4 more authors.
Physical Chemistry Chemical Physics | Year: 2013

An engineered multilayer structure of platinum-cadmium stannate-titanium oxide (Pt-CTO-TO), with different TO layer thickness (in the range 1-5 nm), has been grown at 400 °C on glass substrates by RF magnetron sputtering, following a 2-step procedure without breaking vacuum. To produce an alternative and reliable front contact for dye sensitized solar cells (DSCs), morphology and composition of a TO blocking layer have been studied, paying particular attention to the oxide-oxide (CTO-TO) interface characteristics. The influence of the metallic mesh on the transparent conductive oxide sheet resistance has also been considered. A sputtered CTO layer shows a high average transmittance, over 90%. The Pt mesh yields a drastic reduction in the series resistance, almost one order, without affecting the optical properties. The ultrathin blocking layer of Ti oxide prevents charge recombination, improving the overall performance of the solar cells: +86% in efficiency, +50% in short circuit current, with respect to bare CTO. © 2013 The Owner Societies.

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