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Electronic carriers dynamics in semiconductor nanostructures

Grant number: 13/18719-1
Support type:Research Grants - Young Investigators Grants
Duration: April 01, 2014 - March 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Marcio Daldin Teodoro
Grantee:Marcio Daldin Teodoro
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Assoc. researchers:Euclydes Marega Junior ; Gilmar Eugenio Marques ; Victor Lopez Richard
Associated grant(s):14/07375-2 - Multi-user equipment approved in grant 2013/18719-1: time resolved measurement system, AP.EMU
Associated scholarship(s):16/20628-2 - Integration between magneto-optical experiments via LabVIEW, BP.IC
16/02085-1 - Automation of a cryogenic system for electro- optical measurements, BP.IC
14/09825-5 - Installing the TCSPC technique and measures of lifetime in colloidal quantum dots, BP.IC
14/09824-9 - Excitons dynamics in III-V semiconductor materials, BP.IC


This project is dedicated to the study the optical and electronics properties of semiconductor nanostructures using time resolved spectroscopy technique. Samples with different geometries and composition will be used in the investigation and the search for quantum effects with potential application in devices. The project also includes the collaboration among groups of growth, structural characterization and theoretical calculation, focusing in the studies of spins states confined within these nanostructures. Experimental challenges will be overcome by mounting a unique system built with complementary and compatible parts from different firms that will provide measurements with resolution in the picoseconds range. The system proposed here has cost much less than traditional systems using streak camera. The possibility of integration with other experimental techniques, like application of external magnetic fields, will make this system one of the few able to perform measurements with this degree of resolution. The project has special focus devoted to the study of nanostructures with tridimensional confinement, ring and one-dimensional wire geometries, displaying magnetic and semi-magnetic properties, with possible applications in storage and information transmission on quantum level. National and international partnerships well established by the proponent are fundamental to the development of this project. The complementation of efforts and common interests from different theoretical and experimental areas about this project, will allow a strong consolidation of this research, besides the fact that they compose an interesting proposal of interdisciplinary collaboration among researchers from different Brazilian and foreign institutions. (AU)

Scientific publications (6)
(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)
LAURINDO JR, V; MAZUR, I, YU; DE OLIVEIRA, E. R. CARDOZO; ALEN, B.; WARE, M. E.; MAREGA JR, E.; ZHUCHENKO, Z. YA; TARASOV, G. G.; MARQUES, G. E.; TEODORO, M. D.; SALAMO, G. J. Magnetically controlled exciton transfer in hybrid quantum-dot-quantum-well nanostructures. Physical Review B, v. 100, n. 3 JUL 19 2019. Web of Science Citations: 0.
CARDOZO DE OLIVEIRA, E. R.; PFENNING, A.; GUARIN CASTRO, E. D.; TEODORO, M. D.; DOS SANTOS, E. C.; LOPEZ-RICHARD, V.; MARQUES, G. E.; WORSCHECH, L.; HARTMANN, F.; HOEFLING, S. Electroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures. Physical Review B, v. 98, n. 7 AUG 1 2018. Web of Science Citations: 1.
MONTERO-MUNOZ, MARLY; RAMOS-IBARRA, J. E.; RODRIGUEZ-PAEZ, JORGE E.; TEODORO, MARCIO D.; MARQUES, GILMAR E.; SANABRIA, ALFONSO R.; CAJAS, PAOLA C.; PAEZ, CARLOS A.; HEINRICHS, BENOIT; COAQUIRA, JOSE A. H. Role of defects on the enhancement of the photocatalytic response of ZnO nanostructures. Applied Surface Science, v. 448, p. 646-654, AUG 1 2018. Web of Science Citations: 7.
LOMBARDI, G. A.; DE OLIVEIRA, F. M.; TEODORO, M. D.; CHIQUITO, A. J. Investigation of trapping levels in p-type Zn(3)P(2 )nanowires using transport and optical properties. Applied Physics Letters, v. 112, n. 19 MAY 7 2018. Web of Science Citations: 3.
KAMIMURA, H.; GOUVEIA, R. C.; CARROCINE, S. C.; SOUZA, L. D.; RODRIGUES, A. D.; TEODORO, M. D.; MARQUES, G. E.; LEITE, E. R.; CHIQUITO, A. J. Optical and transport properties correlation driven by amorphous/crystalline disorder in InP nanowires. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 28, n. 47 NOV 30 2016. Web of Science Citations: 1.
MAZUR, YU. I.; LOPES-OLIVEIRA, V.; DE SOUZA, L. D.; LOPEZ-RICHARD, V.; TEODORO, M. D.; DOROGAN, V. G.; BENAMARA, M.; WU, J.; TARASOV, G. G.; MAREGA, JR., E.; WANG, Z. M.; MARQUES, G. E.; SALAMO, G. J. Carrier transfer in vertically stacked quantum ring-quantum dot chains. Journal of Applied Physics, v. 117, n. 15 APR 21 2015. Web of Science Citations: 8.

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