Hot Electron Nanoscopy and Spectroscopy (HENs)

Experimental Route to Scanning Probe Hot‐Electron Nanoscopy (HENs) Applied to 2D Material

“…A comprehensive theoretical description of the phenomena supporting the efficient hot charges generation at the apex of a plasmonic tip, [4,11,14,15] along platelets, [4] or in thin films of plasmonic metals [16] can be found in the dedicated literature, [5] which already has proposed several relevant applications. [3,9,[17][18][19][20] Here we focus on the basic ideas leading to a good hot carrier generation rate as result of SPPs propagation along a conical shaped tip in adiabatic compression.…”

“…Our efforts are dedicated to integrate plasmonic nanostructures with atomic force microscopes (AFM), specifically designing cantilevers with a built in plasmonic nanotip, [5] like the one shown in Figure 2c. Among various plasmonic metals, [6,7] we considered gold for its chemical stability and optimal electrical conductivity.…”

A portable picometer reference actuator with 100 µm range, picometer resolution, subnanometer accuracy and submicroradian tip-tilt error for the characterization of measuring instruments at the nanoscale

“…Their functional units are developed by continuously refining processes either bottom up, atom by atom, or top down like in single-atom layer chemical vapor deposition [13][14][15][16]. With the nanofabrication techniques it is possible to realize, for example, quantum plasmonic devices and metamaterial [17], nanoplasmonic resonator [18][19][20], and surface plasmon or single atom laser optoelectronic devices [21]. Also 2D ICT, based on graphene and on other functionalized layers of chalcogenides hybrid metals, has demonstrated new unique electronic behavior, with physical, chemical and mechanical properties that rely on the specific bonding structure on the nanoscale.…”