Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00474037" target="_blank" >RIV/68378271:_____/17:00474037 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/17:00474037
Result on the web
<a href="http://dx.doi.org/10.1039/c6cp07509f" target="_blank" >http://dx.doi.org/10.1039/c6cp07509f</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6cp07509f" target="_blank" >10.1039/c6cp07509f</a>
Alternative languages
Result language
angličtina
Original language name
Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO
Original language description
Photoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra shows that electron injection occurs in a two-step process, where the formation of a charge transfer state (occurring in several picoseconds) is followed by its dissociation within tens of picoseconds. The photoconductivity of electrons injected into the ZnO nanoparticles is lower than that of charges photogenerated directly in ZnO. We conclude that the motion of injected electrons in ZnO nanoparticles is strongly influenced by their interaction with positive charges left in the sensitizing quantum dots.
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
<a href="/en/project/GA17-03662S" target="_blank" >GA17-03662S: Terahertz conductivity in semiconductor nanostructures: fundamental aspects of charge transport and confinement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Chemistry Chemical Physics
ISSN
1463-9076
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
6006-6012
UT code for WoS article
000395869500034
EID of the result in the Scopus database
2-s2.0-85015070944