Silver alloy-based metal matrix composites: a potential material for reliable transparent thin film heaters

In this study, a flexible Zn(3 at%)-SnO x /AgTi 0.0007 Cr 0.0067 /Zn(3 at%)-SnO x (Zn-SnO x /ATC/Zn-SnO x ) multilayer transparent conducting thin film on a polyethylene terephthalate (PET) substrate was fabricated by on-axis radio frequency (RF) magnetron sputtering at room temperature to obtain a...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2021-04, Vol.9 (13), p.467-4681
Main Authors: Jang, Joohee, Choi, Ji-Won
Format: Article
Language:English
Subjects:
Composition
Durability
Fogging systems
Heat distribution
Heating
High temperature
Magnetron sputtering
Metal matrix composites
Multilayers
Photovoltaic cells
Polyethylene terephthalate
Radio frequency
Room temperature
Silver base alloys
Smart materials
Substrates
Thin films
Titanium
Windows (apertures)
Zinc
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Summary:In this study, a flexible Zn(3 at%)-SnO x /AgTi 0.0007 Cr 0.0067 /Zn(3 at%)-SnO x (Zn-SnO x /ATC/Zn-SnO x ) multilayer transparent conducting thin film on a polyethylene terephthalate (PET) substrate was fabricated by on-axis radio frequency (RF) magnetron sputtering at room temperature to obtain a reliable and transparent thin film heater. To optimize the composition of the Ag-Ti-Cr alloy, which is more durable in high-temperature and humid conditions than the Ag thin film, we performed the constant temperature-humidity test for Ag-Ti-Cr thin films of various compositions deposited by continuous composition spread sputtering. The Zn-SnO x /Ag-0.07 at%Ti-0.67 at%Cr/Zn-SnO x multilayer thin film exhibited a higher transmittance of around 89% and enhanced durability compared with that of the Zn-SnO x /Ag/Zn-SnO x multilayer thin film. Moreover, the mechanical flexibility was confirmed through a bending test. The Zn-SnO x /ATC/Zn-SnO x multilayer thin film heater took approximately 40 s to attain a temperature of 100 °C when the voltage was 6.5 V, and it exhibited stable heating operation even after remaining in a heating state for 2 h. In addition, the durable and transparent Zn-SnO x /ATC/Zn-SnO x multilayer thin film heater exhibited uniform heat distribution and reliable thin film heater performance. Hence, the suggested reliable and transparent Zn-SnO x /ATC/Zn-SnO x multilayer thin film heater is applicable to multifunctional smart windows and anti-fogging systems. A Zn-SnO x /optimized Ag-0.07 at%-0.67 at%Cr/Zn-SnO x multilayer thin film with reliable and reversible heating performance as a flexible transparent thin film heater was fabricated.
ISSN:2050-7526
2050-7534
DOI:10.1039/d1tc00132a