31 October 2016 High-performance transparent film heater with an embedded Ni metal-mesh based on selected metal electrodeposition process
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Abstract
An ultra-flexible and low-sheet resistance transparent conductive film is developed from nickel metal-mesh (Ni metal-mesh) embedded in a polyimide (PI) by exploiting selective deposition technique coupled with photolithography and subsequent inverted film-processing method. The fabricated conductive film achieved sheet resistance values as low as 0.15 Ω sq-1, with corresponding optical transmittance as 80% at 550 nm corresponding the figure of merit up to 1.1×104. The film shows excellent adhesion and also preserves its structural integrity and good contact with the substrate for severe bending showing less than 4% decrease of conductivity even after 104 cycles. Finally, employing the fabricated Ni metal-mesh/PI conductive film, a hybrid transparent thin-film heater is demonstrated, which exhibited higher heating temperatures (110°C) under the lower operating voltage (1 V), lower power consumption (79.1°C cm2 W-1), and shorter response time (T < 2 s) than other heaters, as well as stability after repeated test.
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Yanhua Liu, Su Shen, LinSen Chen, Yun Zhou, Yan Ye, Yanyan Wang, Wen Qiao, Wenbin Huang, "High-performance transparent film heater with an embedded Ni metal-mesh based on selected metal electrodeposition process", Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 100191B (31 October 2016); doi: 10.1117/12.2245975; https://doi.org/10.1117/12.2245975
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