| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1647769 | Materials Letters | 2012 | 4 Pages |
Alternating layers of TiO2 nanosheets and poly(ethylenimine) were sequentially dip coated onto a polyethylene naphthalate substrate (PEN) using layer-by-layer assembly. UV–vis spectroscopy shows a linear growth of the PEI/nanosheets bilayer on the PEN substrate. The cross-section microstructure of the LBL film was studied using scanning electron microscopy (SEM). Helium permeability measurement showed that the titania nanosheet/PEI bilayers reduced the permeation rate of He through the coated PEN film.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► In this study we examine the formation of TiO2 nanosheet/PEI layer by layer assembly on PEN. ► UV–vis spectroscopy shows a linear growth of the PEI/nanosheets bilayer on the PEN substrate. ► We report significantly reduced helium transmission through the LBL films.
