Fabrication of Ag Nanoparticles Embedded in TiO2 Nanotubes: Using Electrospun Nanofibers for Controlling Plasmonic Effects. Issue 26 (6th May 2013)

• Record Type: Journal Article
• Authors: Jung, Mi‐Hee; Yun, Yong Ju; Chu, Moo‐Jung; Kang, Man Gu
• Is Part Of: Chemistry. Volume 19:Issue 26(2013)
• Page Start: 8543
• Page End: 8549
• Publication Date: 2013-05-06
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201300834
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Composites of electrospun poly(ethylene oxide) (PEO) fibers and silver nanoparticles (Ag NPs) were used as a soft template for coating with TiO₂ by atomic layer deposition (ALD). Whereas the as‐deposited TiO₂ layers on PEO fibers and Ag NPs were completely amorphous, the TiO₂ layers were transformed into polycrystalline TiO₂ nanotubes (NTs) with embedded Ag NPs after calcination. Their plasmonic effect can be controlled by varying the thickness of the dielectric Al₂O₃ spacer between Ag NPs and dye molecules by means of the ALD process. Electronic and spectroscopic analyses demonstrated enhanced photocurrent generation and solar‐cell performance due to the intense electromagnetic field of the dye resulting from the surface plasmon effect of the Ag NPs.</p> </abstract>