February 2020
Vol 6, Issue 7

About The Cover

Cover image expansion

ONLINE COVER By growing one material from the lattice of another, scientists are able to create a superstructure that can perform functions that transcend the abilities of a single material. A superstructure that combines the fast charge transport of graphene and the charge generation efficiency of perovskite quantum dots (PQDs) is highly desirable, but currently unavailable. Pradhan et al. prepared a graphite-PQDs superstructure by using a novel growth mechanism to generate PQDs directly from a graphite lattice. The resulting structure's interactions with light and its electrical movement mimic the function of a biological synapse (the junction between two nerve cells). This technological development could enable scientists to create hardware that mimics human brain function, which could be used to improve pattern recognition applications such as those used in AI. It also shows promise for the development of highly efficient optoelectronic materials to improve high-speed communications, sensing, ultra-sensitive cameras, and high-resolution imaging. [CREDIT: JAYAN THOMAS]