Graphene Oxide and Polymer Humidity Micro-Sensors Prepared by Carbon Beam Writing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00570625" target="_blank" >RIV/61389005:_____/23:00570625 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/23:43897662 RIV/60461373:22310/23:43927519
Result on the web
<a href="https://doi.org/10.3390/polym15051066" target="_blank" >https://doi.org/10.3390/polym15051066</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/polym15051066" target="_blank" >10.3390/polym15051066</a>
Alternative languages
Result language
angličtina
Original language name
Graphene Oxide and Polymer Humidity Micro-Sensors Prepared by Carbon Beam Writing
Original language description
In this study, novel flexible micro-scale humidity sensors were directly fabricated in graphene oxide (GO) and polyimide (PI) using ion beam writing without any further modifications, and then successfully tested in an atmospheric chamber. Two low fluences (3.75 x 10(14) cm(-2) and 5.625 x 10(14) cm(-2)) of carbon ions with an energy of 5 MeV were used, and structural changes in the irradiated materials were expected. The shape and structure of prepared micro-sensors were studied using scanning electron microscopy (SEM). The structural and compositional changes in the irradiated area were characterized using micro-Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Rutherford back-scattering spectroscopy (RBS), energy-dispersive X-ray spectroscopy (EDS), and elastic recoil detection analysis (ERDA) spectroscopy. The sensing performance was tested at a relative humidity (RH) ranging from 5% to 60%, where the electrical conductivity of PI varied by three orders of magnitude, and the electrical capacitance of GO varied in the order of pico-farads. In addition, the PI sensor has proven long-term sensing stability in air. We demonstrated a novel method of ion micro-beam writing to prepare flexible micro-sensors that function over a wide range of humidity and have good sensitivity and great potential for widespread 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
10404 - Polymer science
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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymers
ISSN
2073-4360
e-ISSN
2073-4360
Volume of the periodical
15
Issue of the periodical within the volume
5
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
1066
UT code for WoS article
000947426800001
EID of the result in the Scopus database
2-s2.0-85149790433