Triboelectric Energy Harvesting from Highly Conjugated Fused Aromatic Ladder Structure Under Extreme Environmental Conditions.

Practical application of triboelectric nanogenerators (TENGs) has been challenging, particularly, under harsh environmental conditions. This work proposes a novel three-dimensional (3D)-fused aromatic ladder (FAL) structure as a tribo-positive material for TENGs, to address these challenges. The 3D-FAL offers a unique materials engineering platform for tailored properties, such as high specific surface area and porosity, good thermal and mechanical stability, and tunable electronic properties. The fabricated 3D-FAL based TENG reached a maximum peak power density of 451.2 μW cm -2 at 5 Hz frequency. More importantly, the 3D-FAL based TENG maintained stable output performance under harsh operating environments, over wide temperature (-45 to 100°C) and humidity ranges (8.3 to 96.7% RH), representing the development of novel FAL for sustainable energy generation under challenging environmental conditions. Furthermore, the 3D-FAL based TENG proved to be a promising device for a speed monitoring system engaging reconstruction in virtual reality in snowy environment. This article is protected by copyright. All rights reserved.