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Optical and transport phenomena in Nano-devices

Grant number: 14/02112-3
Support type:Regular Research Grants
Duration: October 01, 2015 - September 30, 2017
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Victor Lopez Richard
Grantee:Victor Lopez Richard
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

This proposal foresees the search and development of nanoscale electro-optical semiconductor devices and the systematic study of their optical and transport properties. The goals set now are framed within the scope of a collaborative work between the experimental growth, electro- optical spectroscopy, and theoretical calculations. Previous projects allowed the evolution of our research from topics of fundamental condensed matter physics towards applications where the specialization in manufacturing and modeling of low-dimensional structures and devices appear in communion, combining the theoretical and experimental expertise of the project partners. The theoretical and experimental efforts include the study of transport and electro-optical phenomena in resonant tunneling devices (RTD) applied as photodetectors, accurate sensors, and LEDs, as well as low-dimensional wave guides integrated with quantum dots (QD) as devices for transmission and storage of information. In topics of fundamental semiconductor physics we propose to further deepen the research and simulation of semiconductor QDs, quantum rings, and mono-layers affected by impurities and structural defects. This path has already open new research horizons by combining affective mass models and ab-initio calculations. Many of the problems tackled are grounded on experimental challenging questions where preliminary results show interesting effects of confinement and topology of the strain fields inherent to the growth of these structures. The envisioned technological applications allow betting on the potential of this project for the generation of patents. (AU)

Articles published in Agência FAPESP Newsletter about the research grant
Quantum dot transistor simulates functions of neurons 

Scientific publications (14)
(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)
LLORENS, J. M.; LOPES-OLIVEIRA, V; LOPEZ-RICHARD, V; CARDOZO DE OLIVEIRA, E. R.; WEWIOR, L.; ULLOA, J. M.; TEODORO, M. D.; MARQUES, G. E.; GARCIA-CRISTOBAL, A.; HAI, G-Q; ALEN, B. Topology Driven g-Factor Tuning in Type-II Quantum Dots. PHYSICAL REVIEW APPLIED, v. 11, n. 4 APR 4 2019. Web of Science Citations: 1.
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.
MENESES-GUSTIN, D.; ULLOA, S. E.; LOPEZ-RICHARD, V. Electron scattering in two-dimensional semiconductors: Contrasting massive Dirac and Schrodinger behavior. Physical Review B, v. 98, n. 12 SEP 6 2018. Web of Science Citations: 1.
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.
HARTMANN, F.; PFENNING, A.; REBELLO SOUSA DIAS, M.; LANGER, F.; HOEFLING, S.; KAMP, M.; WORSCHECH, L.; CASTELANO, L. K.; MARQUES, G. E.; LOPEZ-RICHARD, V. Temperature tuning from direct to inverted bistable electroluminescence in resonant tunneling diodes. Journal of Applied Physics, v. 122, n. 15 OCT 21 2017. Web of Science Citations: 4.
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.
HARTMANN, F.; MAIER, P.; REBELLO SOUSA DIAS, M.; GOEPFERT, S.; CASTELANO, L. K.; EMMERLING, M.; SCHNEIDER, C.; HOEFLING, S.; KAMP, M.; PERSHIN, Y. V.; MARQUES, G. E.; LOPEZ-RICHARD, V.; WORSCHECH, L. Nanoscale Tipping Bucket Effect in a Quantum Dot Transistor-Based Counter. Nano Letters, v. 17, n. 4, p. 2273-2279, APR 2017. Web of Science Citations: 3.
MAIER, P.; HARTMANN, F.; REBELLO SOUSA DIAS, M.; EMMERLING, M.; SCHNEIDER, C.; CASTELANO, L. K.; KAMP, M.; MARQUES, G. E.; LOPEZ-RICHARD, V.; WORSCHECH, L.; HOEFLING, S. Mimicking of pulse shape-dependent learning rules with a quantum dot memristor. Journal of Applied Physics, v. 120, n. 13 OCT 7 2016. Web of Science Citations: 1.
MAIER, P.; HARTMANN, F.; DIAS, M. REBELLO SOUSA; EMMERLING, M.; SCHNEIDER, C.; CASTELANO, L. K.; KAMP, M.; MARQUES, G. E.; LOPEZ-RICHARD, V.; WORSCHECH, L.; HOEFLING, S. Light sensitive memristor with bi-directional and wavelength-dependent conductance control. Applied Physics Letters, v. 109, n. 2 JUL 11 2016. Web of Science Citations: 11.
PERSHIN, YURIY V.; CASTELANO, LEONARDO K.; HARTMANN, FABIAN; LOPEZ-RICHARD, VICTOR; DI VENTRA, MASSIMILIANO. A Memristive Pascaline. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v. 63, n. 6, p. 558-562, JUN 2016. Web of Science Citations: 8.
VILLEGAS-LELOVSKY, LEONARDO; MARQUES, GILMAR E.; QU, FANYAO; LOPEZ-RICHARD, VICTOR. Effective particle-hole symmetry breaking, quasi-bond state engineering and optical absorption in graphene based gated dot-ring nanostructures. RSC ADVANCES, v. 6, n. 57, p. 51845-51855, 2016. Web of Science Citations: 0.

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