Karl Franzens University Graz

Graz University of Technology 

Controlling optical properties at the nanoscale: an (electro-)chemical approach
Prof. Gilles R. Bourret
Paris Lodron University of Salzburg
https://www.plus.ac.at/chemie-und-physik-der-materialien/staff-2/a-bis-d/bourret/
16:15 - 17:15 Tuesday 06 December 2022 KFU

The optical and electrical properties of nanomaterials strongly depend on their composition and geometry at the nanoscale. The intrinsic constraints of conventional synthetic and lithographic techniques have limited the types of heterostructures that can be created and studied in the laboratory. Here, I will review the use of bench-top templated electrochemical lithographies and metal-assisted chemical etching (MACE) for synthesizing a variety of complex metal/semiconductor heterostructures with spatial resolution down to the nanometer range.
Nanoscale control over E-field enhancement and light absorption will be discussed in the context of surface-enhanced Raman scattering, single nanowire photodetectors and photocatalysis.