The morphology, structural and optical properties of void-assisted freestanding HVPE-AlN films were investigated by a combination of non-destructive microscopic and spectroscopic techniques. The freestanding approximately 80 mm thick clear film has a wurtzite crystalline structure with remarkable properties around the central film region. The E2(high)-phonon frequency coincides with reported st...

Monitoring of dielectric thin-film production in the microelectronics industry is generally accomplished by depositing a representative film on a monitor wafer and determining the film properties off line. One of the most important dielectric thin films in the manufacture of integrated circuits is borophosphosilicate glass (BPSG). The critical properties of BPSG thin films are the boron content...

Submitted for the MAR09 Meeting of The American Physical Society Mechanics of nanoscale composite films from stress-electrical measurements: A nanoscale foam CHIEU NGUYEN, VIVEK MAHESHWARI, RAVI SARAF, CHEMICAL ENGINEERING-UNIVERSITY OF NEBRASKALINCOLN TEAM — Nanometer thin (> 100nm) composite films consisting of polymers and organic-inorganic materials such as nanoparticles, quantum dots, nano...

A novel photochromic compound, 1,3-diphenyl-4-(3-chloro-4-fluorobenzal)-5-hydoxypyrazole 4-phenylsemicarbazide (1a), has been synthesized by introducing a phenylsemicarbazide unit. The material exhibits good fatigue resistance and reversible fluorescent switching properties with distinct fluorescence on/off ratio under alternating UV irradiation and heating at 120 °C. For the fabrication of act...

We report molecular dynamics simulations of Newton black films (NBFs), ultra thin films of aqueous solutions stabilized with two monolayers of ionic surfactants, sodium dodecyl sulfate. We show that at low water content conditions and areas per surfactant corresponding to experimental estimates in NBFs, homogeneous films undergo an adhesion "transition," which results in a very thin adhesive fi...

rapid thermal processing (rtp) has become a key technology for semiconductor device manufacturing in a variety of applications, such as thermal oxidation, annealing, and thin-film growth. hence, understanding the radiative properties of silicon and other relevant materials is essential for the analysis of the thermal transport processes. we have analyzed and calculated the spectral, directional...

To investigate the effect of continuous multi-walled carbon nanotubes (MWCNTs) on the thermal and mechanical properties of composites, we propose a fabrication method for a buckypaper-filled flexible composite film prepared by a two-step process involving buckypaper fabrication using vacuum filtration of MWCNTs, and composite film fabrication using the dipping method. The thermal conductivity a...

In this study, inulin (INU) extracted from burdock root was utilized as a new film base material and combined with chitosan (CHI) to prepare composite films. Oregano and thyme essential oils (OT) were incorporated into the INU-CHI film to confer the films with bioactivities. The physical and optical properties as well as antioxidant and antimicrobial activities of the films were evaluated. INU ...

Surface wear of metal-on-metal (MoM) hip joints is an ongoing problem that can result in the formation of nano-wear particles and premature failure of the prosthesis. Wear is essentially controlled by the properties of the synovial lubricating film and the nature of the articulating surface. The interfacial film thickness formed within the loaded contact zone during the gait cycle is the most i...

Multilayer metal-ceramic films have the potential to serve as strong, tough and environmentally resistant films and coatings for a wide variety of applications. They derive their properties from the multilayer structure (architecture), the microstructure and, hence, mechanical properties of the individual layers and the stress state of the film. However, in order to realize the potential of mic...