Ultra-thin silicon oxide (a-SiOx:H) films have been grown by means of plasma enhanced chemical vapor deposition (PECVD) to replace the standard hydrogenated amorphous silicon (a-Si:H) passivation layer for silicon heterojunction solar cells to reduce parasitic absorption. Additionally, silicon oxide surfaces are well known as superior substrates for the nucleation enhancement for nanocrystallin...

Vertically aligned arrays of multi-wall carbon nanotubes (MWNT) are grown on Inconel 600, a nickel-based super-alloy. Using x-ray photoelectron spectroscopy (XPS) and chemical vapor deposition (CVD) growth of the MWNTs it is shown that a stable oxidation barrier is required for the stabilization of iron on the substrate and subsequent nanotube growth. This evidence for passivation oxide support...

Nanoscale studies at the early stages of the exposure of copper surfaces after systematic treatments in synthesized water solutions can provide useful information about corrosion processes. The corrosion and passivation of copper surfaces as influenced by pH, dissolved inorganic carbon (DIC) and polyphosphate levels were investigated with nanoscale resolution, to gain insight about changes in s...

Shell Passivation Effect The effectiveness of shell passivation in alleviating the surface quenching Ln3+-doped luminescent nanocrystals has long been approved, yet understanding mechanisms remains elusive. In article number 2100194, Rui Shi, Carlos D. S. Brites, and Luís review context debates on this topic emphasize impacts brought by chemical disorders, which provides new perspectives for ge...

PDMS microfluidic devices whose whole inner surfaces are covered with PTFE (polytetrafluoroethylene) are described. The major problems of PDMS fluidic devices in practical use, are surface degradation with organic solvents and unexpected absorption of chemical materials. In order to overcome these problems, spin/dip-coated perfluoro amorphous polymer is used to form the passivation PTFE layer o...

Challenge of four common AFM tip-terminations: The high rigidity and moderate chemical passivation CuOx-tips provide site-selective contrast on a metal–oxide.

We investigate the passivation quality of Al2O3 thin films grown by atomic laver deposition on differently etched surfaces of ~500 μm thick, 2.13 Ωcm p-type float zone silicon wafers with an (100) crystal orientation. The applied CPand KOH-etches lead to differently shaped surface morphologies but almost equal root-mean-squared (rms) roughnesses of ~0.95 nm (CP) and ~1.07 nm (KOH) measured with...

PURPOSE In general, both chemical composition and surface features of implants affect cell response. The aim of this study was to evaluate the effect of titanium (Ti) passivation on the response of rat bone marrow cells, considering cell attachment, cell morphology, cell proliferation, total protein content, alkaline phosphatase (ALP) activity, and bonelike nodule formation. MATERIALS AND MET...

The electron beam assisted chemical vapor deposit ion of silicon nitride anti-reflection coatings onto thin film CdS/CuInSe2 solar cells and the resultant effects on their performance are reported. In some cases large increases in the short circuit current, open circuit voltage and fill factor were observed. The present results are explained by the usual index matching anti-reflection mechanism...