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Characterization and processing of semiconductor nanostructures and application as devices

Grant number: 14/19142-2
Support type:Research Projects - Thematic Grants
Duration: July 01, 2015 - June 30, 2020
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Gilmar Eugenio Marques
Grantee:Gilmar Eugenio Marques
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Assoc. researchers:Adenilson José Chiquito ; Euclydes Marega Junior ; Iouri Poussep ; José Pedro Rino ; Leonardo Kleber Castelano ; Marcio Daldin Teodoro ; Victor Lopez Richard ; Waldir Avansi Junior
Associated grant(s):18/02858-6 - ANM 2018 advanced nano materials, AR.EXT
16/01968-7 - Coherent electron and hole dynamics in semiconductor rings, AV.EXT
15/23619-1 - Confined and condensed systems: electronic and vibrational properties, AV.EXT
15/13771-0 - Multi-User Equipment approved in grant 14/19142-2: ultra-low vibration cryostat with magnetic field and confocal microscope, AP.EMU
Associated scholarship(s):17/23668-8 - Many-body effects on Valley qubits and on the magneto-optical properties of transition metal dichalcogenide monolayers, BP.PD
15/16175-0 - Assembling and characterization of 2D-molecularly photo-gated thin-film transistor, BP.PD

Abstract

This project has as its main goal, to implement and consolidate common efforts and the leadership between a numbers of researchers working in a key scientific and technological area, corroborating their common expertises. The main objective is to strength the preexisting collaboration between experimentalists and theoreticians through studies of related phenomena link to interface effects, confinement produced during epitaxial growth of semiconductor nanostructures: Heterostructures, quantum dots and rings, and different nanowire structures. These effects respond to and/or modulate the optical, transport, mechanical, magnetic and piezoelectric properties of these systems and, thus, form the basis for their applications as optoelectronic and spintronic devices. From their knowledge and control may result strategic elements that support the evolution of technological perspectives of design, synthesis, processing (doping, lithography, electric contacts, etc) and application of these nanostructures. This proposal is based on five inter-related and complementary pillars: (i) The design, growth and processing samples of nanostructured systems having optical windows and electric contacts; (ii) Their structural characterizations; (iii) Experimental characterization of optical, magnetic and transport properties; (iv) theoretical simulations, via molecular dynamics, of structural and dynamical properties (v) Simulation of optical and transport effects associated to classical elements provided from molecular dynamic results. The practical problems evidenced by the new research tendencies on the confined and extended states show the interesting basic questions to be studied, understood and, possibly, explored. Effects of different nature are present and their theoretical treatments, as well as refined experimental techniques attach to different areas of the Physics and require different methodologies to treat them. The themes of research in this proposal are focused, always as possible, to obtain original results in these new and highly strategic research lines. Certainly, they will allow introducing scientific initiation, undergraduate and graduate students to th fundamental experimental and theoretical tools that are important for development studies and projects in a broad area related to Condensed Matter Physics. In the present project we intend to proceed and give a deeper insight to the several research lines looking for characterization of electronic and spin properties of confined and extended states in semiconductor systems and, thus, to strength the different channels of important collaboration, between experimental as well as theoretical groups established in different national and international centers of research The general and broad themes composing this proposal, involving complementary theoretical and experimental techniques or approaches, may be grouped along the lines: 1. To control of spin properties, using electronic structure engineering of OD, 1D and 2D states in coupled systems where tunneling processes may be manipulates by different external field configurations. To understand the effects detect in the optical emissions (photoluminescence) and associated to spin dynamic of carriers in these semiconductor heterostructures. 2. To elucidate the role of strain-stress and the modulation of transport of carriers (electrons and holes) through quantum wires and other one-dimensional heretostructured systems. 3. To study effects of structural properties in quantum wire systems and one-dimensional chain of dots and the modification and modulation of their optical response and carrier mobilities. 4. To study and explore the spin-orbit effects on the properties of nanostructured systems. Study effects of hybridization of spin states on the anisotropy and on the modulation of the optical response. 5. Look for comprehension and characterization of nanomagnetism and anomalous diamagnetism. (AU)

Scientific publications (12)
(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)
DE MATOS RODRIGUES, MURILLO H.; RODRIGUES DE SOUSA, PRISCILA AFONSO; BORGES, KELLEN CRISTINA M.; COELHO, LUCIANA DE MELO; GONCALVES, ROSANA DE FATIMA; TEODORO, MARCIO DALDIN; DA MOTTA, FABIANA VILELLA; DO NASCIMENTO, RUBENS MARIBONDO; GODINHO JUNIOR, MARIO. Enhanced degradation of the antibiotic sulfamethoxazole by heterogeneous photocatalysis using Ce0,8Gd0,2O2-delta/TiO2 particles. Journal of Alloys and Compounds, v. 808, NOV 5 2019. Web of Science Citations: 0.
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.
CABRAL, L.; ANDRES, J.; MACHADO, T. R.; PICININ, A.; RINO, J. P.; LOPEZ-RICHARD, V.; LONGO, E.; GOUVEIA, A. F.; MARQUES, G. E.; DA SILVA, E. Z.; SAN-MIGUEL, M. A. Evidence for the formation of metallic In after laser irradiation of InP. Journal of Applied Physics, v. 126, n. 2 JUL 14 2019. Web of Science Citations: 0.
LIMA, MATHEUS P.; CABRAL, L.; MARGAPOTI, EMANUELA; MAHAPATRA, SUDDHASATTA; DA SILVA, JUAREZ L. F.; HARTMANN, FABIAN; HOEFLING, SVEN; MARQUES, GILMAR E.; LOPEZ-RICHARD, VICTOR. Defect-induced magnetism in II-VI quantum dots. Physical Review B, v. 99, n. 1 JAN 22 2019. Web of Science Citations: 0.
MENESES-GUSTIN, D.; CABRAL, LUIS; LIMA, MATHEUS P.; DA SILVA, JUAREZ L. F.; MARGAPOTI, EMANUELA; ULLOA, SERGIO E.; MARQUES, GILMAR E.; LOPEZ-RICHARD, VICTOR. Photomodulation of transport in monolayer dichalcogenides. Physical Review B, v. 98, n. 24 DEC 3 2018. Web of Science Citations: 0.
CABRAL, L.; SABINO, FERNANDO P.; LIMA, MATHEUS P.; MARQUES, G. E.; LOPEZ-RICHARD, VICTOR; DA SILVA, JUAREZ L. F. Azobenzene Adsorption on the MoS2(0001) Surface: A Density Functional Investigation within van der Waals Corrections. Journal of Physical Chemistry C, v. 122, n. 33, p. 18895-18901, AUG 23 2018. Web of Science Citations: 1.
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: 10.
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.
TRALLERO-GINER, C.; PADILHA, J. X.; LOPEZ-RICHARD, V.; MARQUES, G. E.; CASTELANO, L. K. Quantum well electronic states in a tilted magnetic field. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 29, n. 32 AUG 16 2017. Web of Science Citations: 0.
CABRAL, L.; SABINO, FERNANDO P.; LOPES-OLIVEIRA, VIVALDO; DA SILVA, JUAREZ L. F.; LIMA, MATHEUS P.; MARQUES, GILMAR E.; LOPEZ-RICHARD, VICTOR. Interplay between structure asymmetry, defect-induced localization, and spin-orbit interaction in Mn-doped quantum dots. Physical Review B, v. 95, n. 20 MAY 8 2017. Web of Science Citations: 2.
SANTIAGO-PEREZ, DARIO G.; TRALLERO-GINER, C.; MARQUES, G. E. Electron-acoustic-phonon interaction in core/shell Ge/Si and Si/Ge nanowires. Physical Review B, v. 95, n. 15 APR 27 2017. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.