Contents: (Small 20/2015)

Au NanoarraysOn page 2392, W. Hu, L. Liao, and co-workers report a large enhancement of the photoresponse in few-layer MoS 2 phototransistors by coupling few-layer MoS 2 with plasmonic nanostructures.Gold nanostructures, such as periodic nanoplates or randomly distributed nanoparticles, can excite localized surface plasmonic resonance waves under illumination, thus manipulating the direction of incident light propagation at a specifi c wavelength.In this manner, gold nanostructures can enhance the light-absorption effi ciency as well as the photoresponsivity of MoS 2 phototransistors.