Chao Lv

TL;DR: This review mainly summarizes the recent advances in the preparation and performance of humidity sensors based on pristine graphene, graphene oxide, reduced grapheneoxide, graphene quantum dots, and a wide variety of graphene based composite materials, including chemical modification, polymer, metal, metal oxide, and other 2D materials.

TL;DR: A facile fabrication of high-performance flexible all-solid-state carbon micro-supercapacitors with highly improved energy and power densities is demonstrated by laser direct writing on polyimide films using a 405nm blue-violet semiconductor laser in an Ar atmosphere.

TL;DR: In this paper, a facile and cost-effective method for the fabrication of all-solid-state flexible carbon micro-supercapacitors (MSC) was demonstrated by laser direct writing on polyimide (PI) sheets with a compact and low-cost 405 nm semiconductor blue-violet laser, the beam of which was almost totally absorbed in the PI sheet.

TL;DR: A fast and highly sensitive all-graphene humidity sensor working in a novel alternating current (ac) detection mode for the first time, which is capable of sensing humidity on a smartphone for portable electronics.

TL;DR: High-conductive carbon/Ni composite structures were prepared by using a facile laser direct writing method, followed by an electroless Ni plating process, which exhibit a 3-order lower sheet resistance of less than 0.1 ohm/sq compared to original structures before plating, showing the potential for practical use.