Contents: (Advanced Optical Materials 10/2015)

A hybrid photodetector consisting of monolayer graphene covered with dispersive organolead halide perovskite islands is demonstrated by B. Sun, Y.-B.Cheng, Q. Bao, and co-workers.On page 1389, the photodetector is shown to have a photoconductive gain of ≈10 9 electrons per photon and a responsivity of ≈6.0 × 10 5 A W -1 .Evidence is provided for charge transfer and photogating.Unlike previous reports on perovskite bulk thin films, these islands have a low recombination rate.The device also shows photodetection across a broad range from 250 to 700 nm. ColorimetryUnlike traditional extraordinary transmission (EOT) devices, a nano Lycurgus cup array (nanoLCA) contains a hybrid configuration of a periodic quasi-3D nanostructure array and dense sidewall metal nanoparticles within each nanostructure, enabling visible colorimetric sensing and SERS chemical identification on the same device.On page 1397, M. R. Gartia, X. Liu, G. L. Liu, and co-workers calculate the SERS enhancement of nanoLCA for a liquid sample as 2.8 × 10 7 , which is the highest among all reported EOT-based SERS devices, with potential in pointof-care (POC) applications.Entering its second decade as a top tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology.Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact (2014 IF: 11.805), making it the first choice of the international materials science community. www.afm