Charge transport in single-crystalline GaAs nanobars: impact of band bending revealed by terahertz spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00552412" target="_blank" >RIV/68378271:_____/22:00552412 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10455650
Result on the web
<a href="https://doi.org/10.1002/adfm.202107403" target="_blank" >https://doi.org/10.1002/adfm.202107403</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adfm.202107403" target="_blank" >10.1002/adfm.202107403</a>
Alternative languages
Result language
angličtina
Original language name
Charge transport in single-crystalline GaAs nanobars: impact of band bending revealed by terahertz spectroscopy
Original language description
Arrays of ultimate-quality single-crystalline GaAs nanobars are prepared via electron-beam lithography in a molecular-beam-epitaxy-grown GaAs layer transferred onto an electrically insulating and optically and terahertz transparent sapphire substrate. Measurements of ultrafast terahertz photoconductivity at 300 and 20 K in an array of such aligned nanobars by time-resolved THz and multi-THz spectroscopy and by time-resolved terahertz scanning near-field microscopy allow an in-depth understanding of the nanoscale electron motion inside the nanobars. A detailed analysis is performed in terms of quantum mechanical calculations of the mobility of carriers and in terms of plasmonic resonance controlled by photocarrier density. The investigations reveal a band bending close to the nanobar surfaces and its prominent effects on the picosecond charge carrier dynamics, leading to an enhanced localization of electrons at longer times.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Functional Materials
ISSN
1616-301X
e-ISSN
1616-3028
Volume of the periodical
32
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
2107403
UT code for WoS article
000720265300001
EID of the result in the Scopus database
2-s2.0-85119333243