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Updated: May 11, 2026
Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance
Published on: April 1, 2013
Fabrication of Ag nanoparticles embedded in TiO2 nanotubes: using electrospun nanofibers for controlling plasmonic
Mi-Hee Jung1, Yong Ju Yun, Moo-Jung Chu
1Solar Cell Technology Research Section IT Components and Materials Industry Technology Research Department, IT Materials and Components Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-no, Yuseong-gu, Daejeon, 305-700, Republic of Korea. mhjung@etri.re.kr
Abstract:
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 Al2 O3 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.
