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Pulsed-bias Sputter Deposition of Chromia and Alumina Films at Low Substrate Temperature

posted by Martynas Audronis   |  24 Jul 2011

This work uses a novel approach of combined medium frequency (20 – 350 kHz) asymmetric bipolar pulsed magnetron sputtering (pulsed-DC) and pulsed substrate biasing to reactively deposit Cr2O3 and Al2O3 thin films at substrate temperatures of the order of 100 °C. Usually in such cases, the target and the substrate [...]

 

Nano-TiO2 for DSSCs: Optimization, Production, and Market

posted by Marie-Isabelle Baraton   |  17 Jun 2011

“The production of titanium dioxide (TiO2) represents a very large market and should top $2.3 billion by 2012. Nearly 95% of the TiO2 production is supplied into the pigment industry for a volume of 4.5 million tons. Indeed, TiO2 is the most widely used white pigment mainly in the paint, [...]

 

Plasma Processing for Photovoltaics: Fundamentals and Applications

posted by Richard van de Sanden   |  31 May 2011

Paper presented at ICMCTF 2011. “In this presentation I will address the different roles atomic hydrogen and ions play in the synthesis of thin amorphous and crystalline materials. In particular I will address the role of atomic H during the growth of amorphous and microcrystalline silicon as determined from in [...]

 

Chemical Vapour Deposition at Atmospheric Pressure

posted by Stefan Kaskel   |  31 May 2011

Presented at MRS Spring Meeting 2011.“A key issue for the production of thin films in photovoltaics, optical coatings, or corrosion protection is cost reduction. In this context, vacuum based processes are often limited especially when large substrates are to be processed. Atmospheric pressure (AP) processes instead allow to process large [...]

 

Surface functionalization of polymers and DLC materials by plasma treatments

posted by Francisco Yubero   |  27 May 2011

Polyethylene terephthalate (PET), polyethylene (PE) polymers and diamond like coatings (DLC) have been treated with several plasmas with the purpose of incorporating different functionalities on their surface. Results with a dielectric barrier discharge (DBD) at atmospheric pressure, a microwave discharge at reduced pressure and those using an atom source [...]

 

Metal Oxide Coatings for Dental Implants: What is Important?

posted by Sandra Rodil   |  27 May 2011

P.N. Rojas, G. Ramírez, A. Almaguer, Universidad Nacional Autonoma de Mexico, R. Olivares-Navarrete, Georgia Institute of Technology, P. Silva-Bermudez, S. Muhl, S.E. Rodil (ser42@iim.unam.mx), Universidad Nacional Autonoma de MexicoMetal alloys are widely used in biomedical devices and components, especially as hard tissue replacements as well as in cardiac and cardiovascular [...]

 

From Plasma Deposited Thin Films to the Preparation of Supported Oxide Nanofibers

posted by Agustín Gonzalez-Elipe   |  26 May 2011

Paper presented at MRS Spring Meeting 2011. “This work presents a critical description of recent cold plasma chemical vapour deposition (PECVD) processes for the growth of oxide thin films and supported nanostructures at low temperatures. Firstly, the growth of oxide thin films is critically addressed by considering parameters such as [...]

 

Nanoscale Engineering of Biointerfaces via Parylene Coatings

posted by Melik Demirel   |  25 May 2011

Nanoscale Engineering of Biointerfaces via Parylene Coatings – paper presented at ICMCTF 2011.Abstract“Anisotropic textured surfaces is generated in the same way in both the plant and animal kingdoms, using dual micro/nanoscale features to tune roughness and surface energy on structures as diverse as plant leaves, animal fur, and bird feathers. [...]

 

Oxide Electrochromics: Advances in Materials and Devices

posted by Claes-Göran Granqvist   |  25 May 2011

Oxide Electrochromics: Advances in Materials and Devices – paper presented at MRS Spring Meeting 2011. “This paper introduces the principles of oxide-based electrochromics and reports new data on materials and devices. Specific discussions are given on new nickel-tungsten oxide based electrochromic films with improved coloration efficiency, transparent conductors comprising ultrathin [...]

 

Transition Metal Oxynitrides: Enhancing Performance by Adding Oxygen

posted by Lorenzo Castaldi   |  24 May 2011

Transition Metal Oxynitrides: Enhancing Performance by Adding Oxygen – paper presented at ICMCTF 2011. Abstract “The different way nitrogen and oxygen bond with transition metals often results in completely different crystallographic and electronic properties between nitrides and oxides. This translates in divergent functionalities for various technological applications. Interestingly, by varying [...]

 
 

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