Papers – Page 18 – TechConnect Briefs

Focussed ion beam etching of the interfacial region of lead zirconate titanate thin film after laser-release from sapphire fabrication substrate

Chakraborty S., Chakraborty T., Xu B., Harrington J., Chakraborty S., Chakraborty T., Zhang Q., Miles R.E., Milne S.J., University of Leeds, UK

Although many lead zirconate titanate (PZT) based MEMS have been demonstrated, the thermal incompatibility problems associated with in-situ fabrication of PZT films on the device substrate remain a major challenge. Process temperatures of 600 –700 [...]

Superhydrophobic ZnO nanotowers

Saleema N., Sarkar D.K., Farzaneh M., Sacher E., Université du Québec à Chicoutimi, CA

Superhydrophobic zinc oxide nanotowers have been grown successfully on sodalime glass substrates by chemical bath deposition (CBD). Field emission scanning electron microscopy (FESEM) images have revealed the presence of randomly oriented hexagonal patterned ZnO nanotowers. [...]

Reliability of Self-assembled Hydropobic Coatings: Chemical Resistance and Mechanical Durability

Kobrin B., Zhang T., Grimes M.T., Chong K., Nowak R., Chinn J., Applied Microstructures, US

We report on hydrophobic self-assembled monolayers (SAM) with an improved chemical and mechanical stability on both Al and Si substrates. These improvements are obtained using a relatively new molecular vapor deposition method - MVDTM, which [...]

Facile Assembly of Nanoparticles into 2D Micro-structured Films by a Polymer-aided Self-organization Process

Nurmawati M.H., Ajikumar P.K., Renu R., Valiyaveettil S., National University of Singapore, SG

There have been many reported approaches for tailoring the properties of nanomaterials by manipulating the way in which they order on several different length scales. The self-assembly of micro- and nano-structures in periodic arrangement of [...]

Feasibility Study of Directed Self-Assembly of Semiconductor Quantum Dots

Friedman L.H., Xu J., Pennsylvania State University, US

Strain mismatched semiconductors are used to form Self-Assembled Quantum Dots (SAQDs). An important step in developing SAQD technology is to control randomness and disorder in SAQD arrays. There is usually both spatial and size disorder. [...]

InAs Quantum Dots Grown by MOCVD for Mid-infrared Emission

Tang X.H., Yin Z.Y., Zhao J.H., Sentosa D., NTU, SG

InAs quantum dots grown on InGaAs.InP matrix by MOCVD has been studied. Formation of the InAs QDs with different growth conditions has been investigated. Using a two-step growth method, high density, uniform QDs have been [...]

Growth of Ge nanowires by chemical vapour deposition technique

Phani A.R., Grossi V., Passacantando M., Ottaviano L., Santucci S., National Institute of Nuclear Physic, IT

Germanium, Mn doped Ge nanowires have been synthesized using chemical vapor deposition with Au nanoparticles (with size ranging from 5nm to 10 nm) as nucleating centers (catalysts) and Germanium, Manganese powders as a source for [...]

ZnCdSe-ZnSe Cladded Quantum Dots using Photoassisted Microwave Plasma (PMP) Enhanced Metalorganic Chemical Vapor Deposition for Lasers and Electroluminescent Phosphors

Rodriguez A., Li R., Yarlagadda P., Papadimitrakopoulos F., Huang W., Ayers J., Jain F., University of Connecticut, US

We have grown for the first time 3-8 nm CdSe and pseudomorophic ZnxCd1-xSe/ZnyCd1-ySe cladded quantum dots (QDs) (x > y) in a novel Photo assisted Microwave Plasma Metalorganic Chemical Vapor Phase Deposition (PMP-MOCVD) reactor. Influence [...]

III-V semiconductor nanowires grown on silicon for vertical devices

Helman A., Borgström M., Wunnicke O., van den Einden W., Verheijen M.A., Roest A.L., Bakkers E.P.A.M., Philips Research Laboratories, NL

The integration of III-V semiconductor nanostructures to silicon technology still represents a challenge. In this work we explore the potential of III-V semiconductor nanowires grown on silicon for the fabrication of electronic devices such as [...]

Study of field emission of multiwalled C nanotubes from arc discharge

Bellucci S., Balasubramanian C., Giannini G., Marchetti M., Micciulla F., Regi M., INFN-Laboratori Nazionali di Frascati, IT

Carbon nanotubes (CNT) were synthesized by DC thermal plasma method. After optimizing the synthesis parameters like the pressure, current etc., the synthesized products especially the anodic deposit was characterized by electron microscopies like Scanning Electron [...]