Evolution of poling-assisted bleaching of metal-doped nanocomposite glass with poling conditions

Deparis, O., Kazansky, P.G., Podlipensky, A., Abdolvand, A., Seifert, G. and Graener, H. (2005) Evolution of poling-assisted bleaching of metal-doped nanocomposite glass with poling conditions. Applied Physics Letters, 86, (26), 261109-261112. (doi:10.1063/1.1977205).


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Original Publication URL: http://dx.doi.org/10.1063/1.1977205


Poling-assisted bleaching was studied with respect to poling time, voltage, and temperature in glass samples having a gradient of silver nanoparticles across the depth. The optical extinction band due to the particles' surface plasmon resonance (around 415 nm) was measured and the Maxwell-Garnett effective medium theory was used to fit extinction spectra. Fitting allowed us to determine the evolution of the thickness of the near-surface layer where the particles' volume filling factor has dropped to zero as a result of the bleaching process. At 280 degrees C, bleaching started with a voltage as low as 200 V and saturated with time after about 1 h. Tight glass-electrode contact, voltage of at least 1 kV, and temperature higher than 200 degrees C were required in order to obtain significant and uniform bleaching in the poled area. The results were discussed in terms of the underlying electric-field-assisted dissolution of embedded metal nanoparticles.

Item Type: Article
Related URLs:
Subjects: Q Science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 42398
Date Deposited: 11 Dec 2006
Last Modified: 27 Mar 2014 18:27
URI: http://eprints.soton.ac.uk/id/eprint/42398

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