Ultraviolet-C photoresponsivity using fabricated TiO2 thin films and transimpedance-amplifier-based test setup
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00566734" target="_blank" >RIV/68378271:_____/22:00566734 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0338022" target="_blank" >https://hdl.handle.net/11104/0338022</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s22218176" target="_blank" >10.3390/s22218176</a>
Alternative languages
Result language
angličtina
Original language name
Ultraviolet-C photoresponsivity using fabricated TiO2 thin films and transimpedance-amplifier-based test setup
Original language description
We report on fabricated titanium dioxide (TiO2) thin films along with a transimpedance amplifier (TIA) test setup as a photoconductivity detector (sensor) in the ultraviolet-C (UV-C) wavelength region, particularly at 260 nm. TiO2 thin films deposited on high-resistivity undoped siliconsubstrate at thicknesses of 100, 500, and 1000 nm exhibited photoresponsivities of 81.6, 55.6, and 19.6 mA/W, respectively, at 30 V bias voltage. Despite improvements in the crystallinity of the thicker films, the decrease in photocurrent, photoconductivity, photoconductance, and photoresponsivity in thicker films is attributed to an increased number of defects. Varying the thickness of the film can, however, be leveraged to control the wavelength response of the detector. Future development of a chip-based portable UV-C detector using TiO2 thin films will open new opportunities for a wide range of 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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Solid State Physics for 21st century</a><br>
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
Sensors
ISSN
1424-8220
e-ISSN
1424-8220
Volume of the periodical
22
Issue of the periodical within the volume
21
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
8176
UT code for WoS article
000881592200001
EID of the result in the Scopus database
2-s2.0-85141880222