Stability Study of Graphene Oxide-Bovine Serum Albumin Dispersions.

In this work, a stability study of dispersions of graphene oxide and graphene oxide functionalized with polyethylene glycol (PEG) in the presence of bovine serum albumin is carried out. First, a structural characterization of these nanomaterials is performed by scanning electron microscopy, atomic force microscopy, and ultraviolet visible spectroscopy, comparing the starting nanomaterials with the nanomaterials in contact with the biological material, i.e.

Comparison of the Material Quality of AlInN (x-0-0.50) Films Deposited on Si(100) and Si(111) at Low Temperature by Reactive RF Sputtering.

AlInN ternary semiconductors have attracted much interest for application in photovoltaic devices. Here, we compare the material quality of AlInN layers deposited on Si with different crystallographic orientations, (100) and (111), via radio-frequency (RF) sputtering. To modulate their Al content, the Al RF power was varied from 0 to 225 W, whereas the In RF power and deposition temperature were fixed at 30 W and 300 °C, respectively.

AlInN on Si (100) Solar Cells (x = 0-0.56) Deposited by RF Sputtering.

We investigate the photovoltaic performance of solar cells based on n-AlInN (x = 0-0.56) on p-Si (100) hetero-junctions deposited by radio frequency sputtering. The AlInN layers own an optical bandgap absorption edge tuneable from 1.