Gigahertz-Based Visible Light Detection Enabled via CdS-Coated TiO2 Nanotube Layers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU148313" target="_blank" >RIV/00216305:26620/23:PU148313 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/23:39920441
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsami.2c21877" target="_blank" >https://pubs.acs.org/doi/10.1021/acsami.2c21877</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.2c21877" target="_blank" >10.1021/acsami.2c21877</a>
Alternative languages
Result language
angličtina
Original language name
Gigahertz-Based Visible Light Detection Enabled via CdS-Coated TiO2 Nanotube Layers
Original language description
Detection of visible light is a key component in material characterization techniques and often a key component of quality or purity control analyses for health and safety applications. Here in this work, to enable visible light detection at gigahertz frequencies, a planar microwave resonator is integrated with high aspect ratio TiO2 nanotube (TNT) layer-sensitized CdS coating using the atomic layer deposition (ALD) technique. This unique method of visible light detection with microwave-based sensing improves integration of the light detection devices with digital technology. The designed planar microwave resonator sensor was implemented and tested with resonant frequency between 8.2 and 8.4 GHz and a resonant amplitude between -15 and -25 dB, depending on the wavelength of the illuminated light illumination on the nanotubes. The ALD CdS coating sensitized the nanotubes in visible light up to similar to 650 nm wavelengths, as characterized by visible spectroscopy. Furthermore, CdS-coated TNT layer integration with the planar resonator sensor allowed for development of a robust microwave sensing platform with improved sensitivity to green and red light (60 and 1300%, respectively) compared to the blank TNT layers. Moreover, the CdS coating of the TNT layer enhanced the sensor's response to light exposure and resulted in shorter recovery times once the light source was removed. Despite having a CdS coating, the sensor was capable of detecting blue and UV light; however, refining the sensitizing layer could potentially enhance its sensitivity to specific wavelengths of light in certain applications.
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
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS applied materials & interfaces
ISSN
1944-8244
e-ISSN
1944-8252
Volume of the periodical
15
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
18379-18390
UT code for WoS article
000967256700001
EID of the result in the Scopus database
2-s2.0-85151835729