Ali Sobhani

TL;DR: A grating-based hot electron device with significantly larger photocurrent responsivity than previously reported antenna-based geometries is reported, and the grating geometry enables more than three times narrower spectral response than observed for nanoantenna-based devices.

TL;DR: It is shown that embedding plasmonic structures into the semiconductor substantially increases hot electron emission, and Responsivities increase by 25× over planar diodes for embedding depths as small as 5 nm.

TL;DR: By tuning plasmonic core-shell nanoparticles to the direct bandgap of monolayer MoS2 and depositing them sparsely (<1% coverage) onto the material's surface, this paper observed a threefold increase in photocurrent and a doubling of photoluminescence signal for both excitonic transitions, amplifying but not altering the intrinsic spectral response.

TL;DR: It is observed that when an Al nanocrystal is coupled to an underlying Al film, its dipolar plasmon resonance linewidth narrows remarkably and shows an enhanced scattering efficiency, which provides a new mechanism for narrowing plAsmon resonances in aluminum-based systems.

TL;DR: Plasmonic hot-carrier-based photodetectors detect light at frequencies below the semiconductor bandgap with room temperature operation and can exhibit spectrally narrowband behavior as mentioned in this paper.