Ag nanoparticle dispersed PbTiO3 percolative composite thin film with high permittivity

Zongrong Wang; Tao Hu; Liwen Tang; Ning Ma; Chenlu Song; Gaorong Han; Wenjian Weng; Piyi Du
December 2008
Applied Physics Letters;12/1/2008, Vol. 93 Issue 22, p222901
Academic Journal
Ag nanoparticle dispersed PbTiO3 percolative composite thin films were prepared in situ by sol-gel method using Pb(NO3)2, Ti(C4H9O)4, and AgNO3 as raw materials and lactic acid along with citric acid as complexing agent. The size of the Ag nanoparticles measured by ultraviolet-visible spectra is about 3 nm. The percolation effect occurs in composite thin films. The composite exhibits relatively high dielectric constant which is about five times higher than that of PbTiO3 thin film and comparatively low dielectric loss comparable to pure PbTiO3 system. It is highly attractive in application of high quality dielectric devices and miniaturization.


Related Articles

  • Photocurrent spectroscopy of low-k dielectric materials: Barrier heights and trap densities. Atkin, J. M.; Song, D.; Shaw, T. M.; Cartier, E.; Laibowitz, R. B.; Heinz, T. F. // Journal of Applied Physics;May2008, Vol. 103 Issue 9, p094104 

    Measurements of photoinduced current have been performed on thin films of porous low-k dielectric materials comprised of carbon-doped oxides. The dielectric films were deposited on silicon surfaces and prepared with a thin gold counterelectrode. From the spectral dependence of the photoinduced...

  • Nanothermochromics: Calculations for VO2 nanoparticles in dielectric hosts show much improved luminous transmittance and solar energy transmittance modulation. Li, S.-Y.; Niklasson, G. A.; Granqvist, C. G. // Journal of Applied Physics;Oct2010, Vol. 108 Issue 6, p063525 

    VO2-based films are thermochromic and show infrared reflectance above a 'critical' temperature in the vicinity of room temperature. Implementations on energy efficient windows have been discussed for decades but have been severely curtailed since the luminous absorptance is undesirably large and...

  • Chitosan Film Containing Poly(D,L-Lactic-Co-Glycolic Acid) Nanoparticles: A Platform for Localized Dual-Drug Release. Tada, Dayane B.; Singh, Surinder; Nagesha, Dattatri; Jost, Evan; Levy, Craig O.; Gultepe, Evin; Cormack, Robert; Makrigiorgos, G. Mike; Sridhar, Srinivas // Pharmaceutical Research;Aug2010, Vol. 27 Issue 8, p1738 

    To characterize and evaluate chitosan film containing PLGA nanoparticles (NPs) as a platform for localized dual-drug release. Fluorescent Paclitaxel (FPTX), a hydrophobic drug, was incorporated into PLGA NPs. FPTX-loaded PLGA NPs and Carboxyfluorescein (CF), a hydrophilic model drug, were...

  • Au nanoparticles on atomically smooth gold film surfaces. Kuturov, A.; Soldatov, E.; Polyakova, L.; Varlashkin, A.; Gubin, S. // Inorganic Materials;Sep2011, Vol. 47 Issue 9, p947 

    We have developed a method for producing an atomically smooth (surface roughness within 0.2 nm over an area of 1000 nm) gold surface and depositing Au nanoparticles (3-13 nm) on it via a self-assembly process.

  • High-mobility transistors based on nanoassembled carbon nanotube semiconducting layer and SiO2 nanoparticle dielectric layer. Wei Xue; Yi Liu; Tianhong Cui // Applied Physics Letters;10/16/2006, Vol. 89 Issue 16, p163512 

    The authors report the fabrication and characterization of high-mobility thin-film transistors (TFTs) using layer-by-layer (LBL) nano self-assembled single-walled carbon nanotubes (SWCNTs) as the semiconducting material and SiO2 nanoparticles as the gate dielectric material. The channel length...

  • Influence of nanocrystal size on dielectric functions of Si nanocrystals embedded in SiO2 matrix. Rong-Jun Zhang; Yi-Ming Chen; Wei-Jie Lu; Qing-Yuan Cai; Yu-Xiang Zheng; Liang-Yao Chen // Applied Physics Letters;10/19/2009, Vol. 95 Issue 16, p161109 

    The complex dielectric functions of Si-nanocrystals (nc-Si) with different sizes embedded in SiO2 matrix synthesized by SiOx/SiO2 superlattice approach is obtained by spectroscopic ellipsometry. The Maxwell–Garnett effective medium approximation and the Lorentz oscillator model are...

  • Dielectric functions and electronic band structure of lead zirconate titanate thin films. Lee, Hosun; Kang, Youn Seon; Cho, Sang-Jun; Xiao, Bo; Morkoç, Hadis; Kang, Tae Dong; Lee, Ghil Soo; Li, Jingbo; Wei, Su-Huai; Snyder, P. G.; Evans, J. T. // Journal of Applied Physics;11/1/2005, Vol. 98 Issue 9, p094108 

    We measure pseudodielectric functions in the visible-deep ultraviolet spectral range of Pb(ZrxTi1-x)O3 (x=0.2,0.56,0.82) (PZT), Pb0.98Nb0.04(Zr0.2Ti0.8)0.96O3, Pb0.91La0.09(Zr0.65Ti0.35)0.98O3, and Pb0.85La0.15Ti0.96O3 films grown on platinized silicon substrates using a sol-gel method and on...

  • Microstructure, dielectric and photoluminescence properties of Tm-doped Ba0.8Sr0.2TiO3 thin films fabricated by sol—gel method. Jun Wang; Tianjin Zhang; Neng Wan; Junhuai Xiang // Journal of Materials Science: Materials in Electronics;Dec2008, Vol. 19 Issue 12, p1184 

    Ba0.8Sr0.2TiO3 thin films doped by Tm from 0 to 7 mol% were fabricated by sol–gel method on silicon and Pt/Ti/SiO2/Si substrates. X-ray diffraction, scanning electron microscopy, and Raman spectroscopy have been used to study variations of crystal structure, surface morphologies, and...

  • Microporous films offer low-k intermetal dielectrics. K.D. // Solid State Technology;Jul95, Vol. 38 Issue 7, p48 

    Focuses on the use of microporous films as a means of reducing intermetal dielectric (IMD) in semiconductor products. Provision of structural stability with good thermal properties; Lowering of dielectric constant; Reduction of stress on the film.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics