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MoldERA

Preparation for Moldova's integration into the European Research Area and into the Community R&D Framework Programs on the basis of scientific excellence

Physica Status Solidi

Physica Status Solidi

Surface writing produces designer nanostructures

Fri, 05/04/2012 - 07:40 — admin

A new way to fabricate 3D nanostructures from gallium nitride using a focused ion beam (FIB) has been developed by researchers in Moldova, Australia, Germany and France. The technique, which involves directly writing a negative charge on the surface of GaN with the FIB and then photoelectrochemically etching the sample, allows ultrathin membranes and supporting nanocolumns to be fashioned in a controlled way. GaN is a large-bandgap semiconductor widely used in electronics applications such as high-temperature, high-power electronics and optoelectronics for light-emitting diodes and lasers.

Surface writing produces designer nanostructures