▎ 摘　　要

The laser scribing of polyimide (PI, Kapton) film is a new, simple and effective method for graphene preparation. Moreover, the superhydrophobic surface modification can undoubtedly widen the application fields of graphene. Herein, inspired by the hydrophobic and self-cleaning properties of natural Oxalis corniculata Linn. leaves, we propose a novel bionic manufacturing method for superhydrophobic laser-induced graphene (LIG). By tailoring the geometric parameters (size, roughness and height/area ratio) and chemical composition, the three-dimensional (3D) multistage LIG, i.e., with micro-jigsaw-like and porous structure, can deliver a static water contact angle (WCA) of 153.5 degrees +/- 0.6 degrees, a water sliding angle (WSA) of 2.5 degrees +/- 0.5 degrees, and great superhydrophobic stability lasting for 100 days (WCAs approximate to 150 degrees). This outstanding water repellency is achieved by the secondary structure of jigsaw-like LIG, a porous morphology that traps air layers at the solid-liquid interface. The robust self-cleaning and anti-stick functions of 3D bionic and multistage LIG are demonstrated to confirm its great potential in wearable electronics. [GRAPHICS]