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Optical modulation of semiconductor nanostructures using surface acoustic waves

Abstract

The generation of surface acoustic waves (SAWs) on semiconductor piezoelectric substrates, such as GaAs, allows for the application of the SAW strain and piezoelectric fields to manipulate elementary excitations (like carriers, spins, and photons) in low dimensional semiconductor nanostructures. The SAW propagating fields, besides inducing carrier transport, can be used to modulate the optical properties of nanostructures via the Stark effect induced by the piezoelectric field and the band gap modulation induced by the strain. Here, we propose a new research project focused on the modulation of the optical properties of semiconductor nanostructures using surface acoustic waves. Our goal is to use SAWs as a local, non destructive and precise tool to manipulate and dynamically tune the emission properties of nanoscale structures. We describe the methods employed in order to implement this technique and propose experiments to beper formed in III-V semiconductor nanowires and core/shell colloidal quantum dots. In the former, we show how one dimensional carrier acoustic transport along the nanowire growth direction can be achieve dusing SAWs. In the latter, the acoustic modulation is employed to tune the energy levels of individual nano crystals. We also discuss how these experiments can be used as a platform for a series of carrier and spin dynamics studies in different types of nanostructures. (AU)

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Scientific publications (10)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SCOLFARO, DIEGO; FINAMOR, MATHEUS; TRINCHAO, LUCA O.; ROSA, BARBARA L. T.; CHAVES, ANDREY; SANTOS, V, PAULO; IIKAWA, FERNANDO; COUTO, JR., ODILON D. D. Acoustically Driven Stark Effect in Transition Metal Dichalcogenide Monolayers. ACS NANO, v. 15, n. 9, p. 15371-15380, SEP 28 2021. Web of Science Citations: 0.
FERREIRA, FLAVIA DE SOUSA; DE MORAIS, AMANDA JUSTINO; SANTOS CALADO, CLAUDIA MANUELA; IIKAWA, FERNANDO; COUTO JUNIOR, ODILON D. D.; BRUNET, GABRIEL; MURUGESU, MURALEE; MAZALI, ITALO O.; SIGOLI, FERNANDO A. Dual magnetic field and temperature optical probes of controlled crystalline phases in lanthanide-doped multi-shell nanoparticles. NANOSCALE, v. 13, n. 35 JUL 2021. Web of Science Citations: 0.
RODRIGUES, LEONARDE N.; SCOLFARO, DIEGO; DA CONCEICAO, LUCAS; MALACHIAS, ANGELO; COUTO, ODILON D. D.; IIKAWA, FERNANDO; DENEKE, CHRISTOPH. Rolled-Up Quantum Wells Composed of Nanolayered InGaAs/GaAs Heterostructures as Optical Materials for Quantum Information Technology. ACS APPLIED NANO MATERIALS, v. 4, n. 3, p. 3140-3147, MAR 26 2021. Web of Science Citations: 0.
DA SILVA, BRUNO C.; COUTO JR, ODILON D. D.; OBATA, HELIO T.; DE LIMA, MAURICIO M.; BONANI, FABIO D.; DE OLIVEIRA, CAIO E.; SIPAHI, GUILHERME M.; IIKAWA, FERNANDO; COTTA, MONICA A. Optical Absorption Exhibits Pseudo-Direct Band Gap of Wurtzite Gallium Phosphide. SCIENTIFIC REPORTS, v. 10, n. 1 MAY 13 2020. Web of Science Citations: 1.
GORDO, VANESSA ORSI; RODRIGUES, LEONARDE N.; KNOPPER, FLORIS; GARCIA JR, AILTON J.; IIKAWA, FERNANDO; COUTO JR, ODILON D. D.; DENEKE, CHRISTOPH. Band structure engineering in strain-free GaAs mesoscopic systems. Nanotechnology, v. 31, n. 25 APR 3 2020. Web of Science Citations: 0.
ERRULAT, DYLAN; MARIN, RICCARDO; GALICO, DIOGO A.; HARRIMAN, KATIE L. M.; PIALAT, AMELIE; GABIDULLIN, BULAT; IIKAWA, FERNANDO; COUTO, JR., ODILON D. D.; MOILANEN, JANI O.; HEMMER, EVA; SIGOLI, FERNANDO A.; MURUGESU, MURALEE. A Luminescent Thermometer Exhibiting Slow Relaxation of the Magnetization: Toward Self-Monitored Building Blocks for Next-Generation Optomagnetic Devices. ACS CENTRAL SCIENCE, v. 5, n. 7, p. 1187-1198, JUL 24 2019. Web of Science Citations: 26.
ORSI GORDO, V.; BALANTA, M. A. G.; GALVAO GOBATO, Y.; COVRE, F. S.; GALETI, H. V. A.; IIKAWA, F.; COUTO, JR., O. D. D.; QU, F.; HENINI, M.; HEWAK, D. W.; HUANG, C. C. Revealing the nature of low-temperature photoluminescence peaks by laser treatment in van der Waals epitaxially grown WS2 monolayers. NANOSCALE, v. 10, n. 10, p. 4807-4815, MAR 14 2018. Web of Science Citations: 7.
DA SILVA, BRUNO C.; OLIVEIRA, DOUGLAS S.; IIKAWA, FERNANDO; COUTO, JR., ODILON D. D.; BETTINI, JEFFERSON; ZAGONEL, LUIZ F.; COTTA, MONICA A. Exploring Au Droplet Motion in Nanowire Growth: A Simple Route toward Asymmetric GaP Morphologies. Nano Letters, v. 17, n. 12, p. 7274-7282, DEC 2017. Web of Science Citations: 2.
COVRE DA SILVA, SAIMON FILIPE; MARDEGAN, THAYNA; DE ARAUJO, SIDNEI RAMIS; OSPINA RAMIREZ, CARLOS ALBERTO; KIRAVITTAYA, SUWIT; COUTO, JR., ODILON D. D.; IIKAWA, FERNANDO; DENEKE, CHRISTOPH. Fabrication and Optical Properties of Strain-free Self-assembled Mesoscopic GaAs Structures. NANOSCALE RESEARCH LETTERS, v. 12, JAN 21 2017. Web of Science Citations: 1.
COUTO, JR., O. D. D.; DE ALMEIDA, P. T.; DOS SANTOS, G. E.; BALANTA, M. A. G.; ANDRIOLO, H. F.; BRUM, J. A.; BRASIL, M. J. S. P.; IIKAWA, F.; LIANG, B. L.; HUFFAKER, D. L. Enhancement of carrier lifetimes in type-II quantum dot/quantum well hybrid structures. Journal of Applied Physics, v. 120, n. 8 AUG 28 2016. Web of Science Citations: 1.

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