title: Nanostructured copper/porous silicon hybrid systems as efficient sound-emitting devices.
abstract: In the present work, the photo-acoustic emission from nanostructured copper/porous silicon hybrid systems was studied. Copper nanoparticles were grown by photo-assisted electroless deposition on crystalline silicon and nanostructured porous silicon (nanoPS). Both the optical and photo-acoustic responses from these systems were determined. The experimental results show a remarkable increase in the photo-acoustic intensity when copper nanoparticles are incorporated to the porous structure. The results thus suggest that the Cu/nanoPS hybrid systems are suitable candidates for several applications in the field of thermoplasmonics, including the development of sound-emitting devices of great efficiency.
authors.affiliation: Departamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, 4813302 Temuco, Chile.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Recio-Sánchez
authors.affiliation: Department of Micro-Engineering, Kyoto University, 615-8540 Kyoto, Japan.
authors.forename: Kyoko
authors.initials: K
authors.lastname: Namura
authors.affiliation: Department of Micro-Engineering, Kyoto University, 615-8540 Kyoto, Japan.
authors.forename: Motofumi
authors.initials: M
authors.lastname: Suzuki
authors.affiliation: Departamento de Física Aplicada, Universidad Autónoma de Madrid, Cantoblanco 28049, Madrid, Spain.
authors.forename: Raúl J
authors.initials: RJ
authors.lastname: Martín-Palma
keywords: Copper; Hybrid system; Nanostructure; Porous silicon; Thermoplasmonics