The effects of the focus ion beam milling process on the optical properties of semiconductor nanostructures

Bellini, Eleonora; Taurino, A.; Catalano, M.; Lomascolo, M.; Passaseo, A.; Vasanelli, L.

doi:10.1088/0957-4484/20/25/255306

Cited by 4 publications

(1 citation statement)

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“…631 The FIB treatment was used to remove a metallic mask deposited on top of the quantum dot, but it was found that the FIB caused damage on the dots, resulting in total inhibition of the luminescence properties of the InGaAs/GaAs quantum dots.…”

Section: Inas Quantum Dotsmentioning

confidence: 99%

Ion and electron irradiation-induced effects in nanostructured materials

Krasheninnikov¹,

Nordlund²

2010

Journal of Applied Physics

936

591

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A common misconception is that the irradiation of solids with energetic electrons and ions has exclusively detrimental effects on the properties of target materials. In addition to the well-known cases of doping of bulk semiconductors and ion beam nitriding of steels, recent experiments show that irradiation can also have beneficial effects on nanostructured systems. Electron or ion beams may serve as tools to synthesize nanoclusters and nanowires, change their morphology in a controllable manner, and tailor their mechanical, electronic, and even magnetic properties. Harnessing irradiation as a tool for modifying material properties at the nanoscale requires having the full microscopic picture of defect production and annealing in nanotargets. In this article, we review recent progress in the understanding of effects of irradiation on various zero-dimensional and one-dimensional nanoscale systems, such as semiconductor and metal nanoclusters and nanowires, nanotubes, and fullerenes. We also consider the two-dimensional nanosystem graphene due to its similarity with carbon nanotubes. We dwell on both theoretical and experimental results and discuss at length not only the physics behind irradiation effects in nanostructures but also the technical applicability of irradiation for the engineering of nanosystems.

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Section: Inas Quantum Dotsmentioning

confidence: 99%