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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Magnetically controlled exciton transfer in hybrid quantum-dot-quantum-well nanostructures

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Laurindo Jr, V ; Mazur, I, Yu ; de Oliveira, E. R. Cardozo [1] ; Alen, B. [2] ; Ware, M. E. [3] ; Marega Jr, E. ; Zhuchenko, Z. Ya [4] ; Tarasov, G. G. [4] ; Marques, G. E. [1] ; Teodoro, M. D. [1] ; Salamo, G. J. [3]
Total Authors: 11
[1] Laurindo Jr, Jr., V, Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] CEI UAM, CSIC, IMN, CNM, Isaac Newton 8, E-28760 Madrid - Spain
[3] Mazur, Yu, I, Univ Arkansas, Inst Nanosci & Engn, Fayetteville, AR 72701 - USA
[4] Natl Acad Sci, Inst Semicond Phys, Pr Nauki 45, UA-03028 Kiev - Ukraine
Total Affiliations: 4
Document type: Journal article
Source: Physical Review B; v. 100, n. 3 JUL 19 2019.
Web of Science Citations: 0

A magnetophotoluminescence study of the carrier transfer with hybrid InAs/GaAs-quantum-dot-InGaA-squantum-well structures is carried out where we observe an unusual dependence of the photoluminescence (PL) on the GaAs barrier thickness at strong magnetic field and excitation density. For the case of a thin barrier the quantum-well (QW) PL intensity is observed to increase at the expense of a decrease in the quantum-dot (QD) PL intensity. This is attributed to changes in the interplane carrier dynamics in the QW and the wetting layer (WL) resulting from increasing the magnetic field along with changes in the coupling between QD excited states and exciton states in the QW and the WL. (AU)

FAPESP's process: 13/18719-1 - Electronic carriers dynamics in semiconductor nanostructures
Grantee:Marcio Daldin Teodoro
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 14/07375-2 - Multi-user equipment approved in grant 2013/18719-1: time resolved measurement system
Grantee:Marcio Daldin Teodoro
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 14/19142-2 - Characterization and processing of semiconductor nanostructures and application as devices
Grantee:Gilmar Eugenio Marques
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/01914-0 - Functionalizing the optical emission in quantum tunneling nanostructures in different spectral intervals
Grantee:Marcio Daldin Teodoro
Support Opportunities: Regular Research Grants