TITLE

Thermal sintering of solution-deposited nanoparticle silver ink films characterized by spectroscopic ellipsometry

AUTHOR(S)
Pan, Heng; Ko, Seung H.; Grigoropoulos, Costas P.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/8/2008, Vol. 93 Issue 23, p234104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Low-temperature sintering of metal nanoparticle inks is a promising technique in realizing large area and flexible electronics. It is demonstrated in this letter that spectroscopic ellipsometry in the spectral region of 0.75–3.5 eV can be employed to characterize the sintering process manifested by the evolution of film thickness, effective dielectric function, and percolation transition. A two-oscillator model can be used to model the effective dielectric function. The oscillator energy shifts lower and correlates well with the increase in dc conductance as demonstrated by both in situ and ex situ ellipsometric measurements. A simple model based on two-dimensional R-L-C impedance network was adopted to explain experimental results quantitatively.
ACCESSION #
35886528

 

Related Articles

  • Twin-horseshoe resonator—An investigation. Gonord, Patrick; Kan, Siew // Review of Scientific Instruments;Feb1994, Vol. 65 Issue 2, p509 

    Two parallel-plate copper rings with diagonally opposite gaps separated by a dielectric medium form a resonator the natural resonant frequency which is a function of the transmission line propagation constant, its characteristic impedance, as well as the series inductance of the two loops. By...

  • Measurement of surface impedance versus temperature using a generalized sapphire resonator technique. Fletcher, R.; Cook, J. // Review of Scientific Instruments;Aug1994, Vol. 65 Issue 8, p2658 

    An automated measurement technique to measure the surface impedance, Z[sub s] = R[sub s] + iX[sub s], as a function of temperature is presented. Based on the dielectric resonator measurement technique, a general purpose approach is developed which does not neglect dielectric loss and can...

  • Complex dielectric constant measurement of samples of various cross sections using a microwave impedance bridge. Joo, J.; Epstein, A. J. // Review of Scientific Instruments;Aug1994, Vol. 65 Issue 8, p2653 

    A microwave impedance bridge covering from 8.2 to 12.4 GHz used for measuring complex dielectric constants over a wide temperature range is described. This apparatus is suited for materials formed into solid posts having different cross sections. The effective diameters for use in the analysis...

  • Microwave dielectric properties and low temperature sintering of Li2Zn(Ti1−xSnx)3O8 (x ≤ 0.20) ceramics with B2O3–CuO addition. Wu, Ying; Zhou, Di; Guo, Jing; Pang, Li-Xia // Journal of Materials Science: Materials in Electronics;Dec2013, Vol. 24 Issue 12, p4942 

    In the present work, the influence of Sn substitution for Ti on the phase composition and microwave dielectric properties of the Li 2Zn(Ti 1−xSnx) 3O 8 (x ≤ 0.20) ceramics was studied. It was found that the Sn did not occupy the Ti site in the Li 2Zn(Ti 1−xSn x) 3O 8...

  • Low temperature dielectric properties of YMn0.95Ru0.05O3. Thakur, Rajesh K.; Thakur, Rasna; Okram, G. S.; Kaurav, N.; Gaur, N. K. // AIP Conference Proceedings;Feb2013, Vol. 1512 Issue 1, p1238 

    The single phase hexagonal YMn0.95Ru0.05O3 compound has been synthesized via solid state reaction method at sintering temperature 1280°C with space group P63cm (25-1079). The detailed dielectric properties were evaluated over broad temperature and frequency ranges. An obvious dielectric...

  • Details of below band-gap uniaxial dielectric function of SiC polytypes studied by spectroscopic ellipsometry and polarized light transmission spectroscopy. Kildemo, M.; Hansteen, F.; Hunderi, O. // Journal of Applied Physics;May2002, Vol. 91 Issue 9, p5677 

    The optical properties of the below band-gap uniaxial dielectric function are studied as a function of the degree of hexagonality. The polytypes investigated were lightly doped 4H, 6H, 15R, and 21R silicon carbide. The ordinary component of the dielectric function is extracted from phase...

  • Automated null ellipsometer with rotating analyzer. Schrottke, L.; Jungk, G. // Review of Scientific Instruments;Dec1994, Vol. 65 Issue 12, p3657 

    An automated version of a spectroscopic ac null ellipsometer is described. By simultaneous variation of the angle of incidence and the polarizer azimuth, circular polarization of the reflected radiation can be obtained for any sample configuration. This state of polarization is checked by a...

  • Compact CPW Fed Slot Dipole Antennas with Different Excitation Techniques. R., Sujith; Graham, Ben; U., Deepak; G., Jaijith V.; Mohanan, P.; Timmons, Nick; Morrisson, Jim // International Journal on Communications Antenna & Propagation;Jun2012, Vol. 2 Issue 3, p194 

    A Centre fed slot dipole antenna excited with coplanar waveguide feed is presented and discussed. The very high impedance of an open ended coplanar waveguide (CPW) is made lower by off centering the feed position, optimizing the feed length and by using a T-shaped feed. All presented prototypes...

  • Effect of dc electric field on the effective microwave surface impedance of.... Findikoglu, A.T.; Doughty, C. // Applied Physics Letters;12/6/1993, Vol. 63 Issue 23, p3215 

    Examines the effect of a direct current electric field on the effective microwave surface impedance of a thin film trilayer. Use of a dielectric resonator technique; Decrease of the effective surface resistance and reactance of the sample; Explanation on the changes in the surface impedance.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics