Terahertz conductivity in nanoscaled systems: effective medium theory aspects

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00440754" target="_blank" >RIV/68378271:_____/14:00440754 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0022-3727/47/37/374005" target="_blank" >http://dx.doi.org/10.1088/0022-3727/47/37/374005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0022-3727/47/37/374005" target="_blank" >10.1088/0022-3727/47/37/374005</a>

Result language

angličtina

Original language name

Terahertz conductivity in nanoscaled systems: effective medium theory aspects

Original language description

Ultrafast photoconductivity in nanostructured semiconductors is poorly understood on the microscopic level in many systems. The terahertz spectroscopy constitutes a suitable method to probe the nanoscopic motion of charges with a sub-picosecond time resolution. However, straightforward fitting of the raw terahertz conductivity spectra by the Drude-Smith model, which is abundantly used in the literature, has not lead to a significant advance in an in-depth understanding of these phenomena. In this paperwe provide a general analytical description of the photoconductivity and transient transmission spectra, where the effects of depolarization fields are systematically disentangled from the local carrier response function for both percolated and non-percolated samples. Application of our formula to the retrieval of the carrier response function may help significantly in uncovering the nature of charge carrier transport at the nanoscale level in quite arbitrary nanostructured systems.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA13-12386S" target="_blank" >GA13-12386S: Photoconductivity and dynamics of excitations in nanostructured and disordered semiconductors on ultrafast time scale</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics D-Applied Physics

ISSN

0022-3727

e-ISSN

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Volume of the periodical

47

Issue of the periodical within the volume

37

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

1-14

UT code for WoS article

000341770700006

EID of the result in the Scopus database

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