Abstract
Herein, flexible and robust heaters are proposed based on laser‐induced graphene (LIG) fabricated photothermally on polyimide (PI) substrates. The heaters are precisely defined by a computer numerical control (CNC) platform‐driven laser diode with a one‐step process. The electrothermal performance of the heaters can be adjusted by tuning the laser driving speed in a certain range under a given input power. The fabricated heater shows a high saturation temperature (270 °C), the fast response time (10 s), and satisfactory convective heat‐transfer coefficient (42 W m−2 °C−1). Simultaneously, the developed heaters demonstrate excellent flexibility, robust adhesion, and good long‐time stability. The experimental results pave the way for high‐performance, environmentally friendly, robust, and flexible heaters.
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