photoluminescence

A multi-purpose low-energy proton source for tailoring the properties of quantum materials, advanced insulators for optics, and solid cells for energy applications (AMLET)

Italiano

The Kaufman source acquired allows varying the proton beam energy from 10 to 1200 eV with a high degree of reproducibility and control. The same applies to the dose of incorporated protons. These very important parameters are typically hard to control by other systems, such as plasma sources or electrochemical methods. Indeed, Kaufman sources are configured to have the region of gas ionization physically separate from the intended target, avoiding exposure of the samples to intense and potentially damaging electric fields.

Sensitivity to heavy-metal ions of unfolded fullerene quantum dots

A novel type of graphene-like quantum dots, synthesized by oxidation and cage-opening of C60 buckminsterfullerene, has been studied as a ?uorescent and absorptive probe for heavy-metal ions. The lattice structure of such unfolded fullerene quantum dots (UFQDs) is distinct from that of graphene since it includes both carbon hexagons and pentagons. The basic optical properties, however, are similar to those of regular graphene oxide quantum dots.

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