Reduction of carrier mobility in semiconductors caused by charge-charge interactions

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Reduction of carrier mobility in semiconductors caused by charge-charge interactions

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/32477

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Title: Reduction of carrier mobility in semiconductors caused by charge-charge interactions
Author: Hendry, Euan
Koeberg, Mattijs
Pijpers, J.
Bonn, Mischa
Citation: 75 (23), article 233202
Publisher: American Physical Society
Journal: Physical Review B
Date Issued: 2007
URI: http://hdl.handle.net/10036/32477
DOI: 10.1103/PhysRevB.75.233202
Links: http://dx.doi.org/10.1103/PhysRevB.75.233202 http://link.aps.org/abstract/PRB/v75/e233202
Abstract: We investigate the effect of charge-charge interactions on carrier mobility in titanium dioxide (TiO2) and silicon (Si) using terahertz spectroscopy. Charge scattering times and plasma frequencies are directly determined as a function of charge density. In Si, a linear increase in scattering rate for densities exceeding 1021 m−3 is attributed to electron-hole scattering. In contrast, in TiO2, charge-charge interactions are suppressed due to dielectric screening, highlighting the vastly different dielectric properties for these two materials.
Type: Article
Description: Euan Hendry, M. Koeberg, J. Pijpers, and M. Bonn, Physical Review B, Vol. 75, article 233202 (2007). "Copyright © 2007 by the American Physical Society."
Keywords: titanium compoundssiliconcarrier mobilitysubmillimetre wave spectrasemiconductor plasmadielectric functionphotoconductivity
ISSN: 1098-01211550-235X


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