Issue 17, 2021

High-temperature, thin, flexible and transparent Ni-based heaters patterned by laser-induced reductive sintering on colorless polyimide

Abstract

This study reports a novel method for the fabrication of a high-performance, flexible and transparent heater (TH) comprising imperceptible nickel (Ni) micropatterns on a colorless polyimide (cPI) substrate. The specially developed laser digital patterning (LDP) process, which utilizes laser-thermal degradation of organic surfactants generating reducing agent, enables a fast, affordable, and reliable way to form Ni-grid/cPI structures with a low sheet resistance (26.3 Ω sq−1) and a high transmittance (87.3% at 550 nm). Thanks to the thermal stability of Ni and cPI, together with the low sheet resistance, the Ni/cPI TH exhibits stable performance even at the highest heating temperature ever reported for flexible TH (310 °C at 11 V). As a consequence, the proposed scheme realizes an advanced process for the fabrication of chemically and mechanically stable, lightweight (4.1 mg cm−1), high-performance, and flexible TH.

Graphical abstract: High-temperature, thin, flexible and transparent Ni-based heaters patterned by laser-induced reductive sintering on colorless polyimide

Supplementary files

Article information

Article type
Paper
Submitted
29 Jan 2021
Accepted
24 Mär 2021
First published
24 Mär 2021

J. Mater. Chem. C, 2021,9, 5652-5661

High-temperature, thin, flexible and transparent Ni-based heaters patterned by laser-induced reductive sintering on colorless polyimide

V. B. Nam, J. Shin, A. Choi, H. Choi, S. H. Ko and D. Lee, J. Mater. Chem. C, 2021, 9, 5652 DOI: 10.1039/D1TC00435B

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