دورية أكاديمية
Mesoporous Thin Films for Acoustic Devices in the Gigahertz Range
| العنوان: | Mesoporous Thin Films for Acoustic Devices in the Gigahertz Range |
|---|---|
| المؤلفون: | López Abdala, Nicolás Andrés, Esmann, Martin, Fuertes, María Cecilia, Angelome, Paula Cecilia, Ortiz, Omar, Bruchhausen, Axel Emerico, Pastoriza, Hernan, Perrin, Bernard, Soler Illia, Galo Juan de Avila Arturo, Lanzillotti Kimura, Norberto Daniel |
| بيانات النشر: | American Chemical Society |
| المجموعة: | CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: | MESOPOROUS THIN FILMS, NANOMECHANICS, NANOPHOTONICS, ACOUTIC-PHONONS, NANOCAVITES, PICOSECOND ULTRASONICS, https://purl.org/becyt/ford/2.10Test, https://purl.org/becyt/ford/2Test, https://purl.org/becyt/ford/1.3Test, https://purl.org/becyt/ford/1Test |
| الوصف: | The coherent manipulation of acoustic waves on the nanoscale usually requires multilayers with thicknesses and interface roughness defined down to the atomic monolayer. This results in expensive devices with predetermined functionality. Nanoscale mesoporous materials present a high surface-to-volume ratio and tailorable mesopores, which allow the incorporation of chemical functionalization to nanoacoustics. However, the presence of pores with sizes comparable to the acoustic wavelength is intuitively perceived as a major roadblock in nanoacoustics. Here, we present multilayered nanoacoustic resonators based on mesoporous SiO2 thin films showing acoustic resonances in the 5-100 GHz range. We characterize the acoustic response of the system using coherent phonon generation experiments. Despite resonance wavelengths comparable to the pore size, we observe for the first time well-defined acoustic resonances. Our results open the path to a promising platform for nanoacoustic sensing and reconfigurable acoustic nanodevices based on soft, inexpensive fabrication methods. ; Fil: López Abdala, Nicolás Andrés. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: Esmann, Martin. Université de Paris-Saclay; Francia. Centre National de la Recherche Scientifique; Francia ; Fil: Fuertes, María Cecilia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina ; Fil: Angelome, Paula Cecilia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1932-7447 |
| العلاقة: | http://hdl.handle.net/11336/146947Test; López Abdala, Nicolás Andrés; Esmann, Martin; Fuertes, María Cecilia; Angelome, Paula Cecilia; Ortiz, Omar; et al.; Mesoporous Thin Films for Acoustic Devices in the Gigahertz Range; American Chemical Society; Journal of Physical Chemistry C; 124; 31; 6-2020; 17165-17171; CONICET Digital; CONICET |
| الإتاحة: | https://doi.org/10.1021/acs.jpcc.0c05464Test http://hdl.handle.net/11336/146947Test |
| حقوق: | info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/arTest/ |
| رقم الانضمام: | edsbas.28A61EA1 |
| قاعدة البيانات: | BASE |
| تدمد: | 19327447 |
|---|