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Two-dimensional spectroscopy of novel nanomaterials

Grant number: 16/50011-7
Support type:Regular Research Grants
Duration: December 01, 2016 - November 30, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Cooperation agreement: University of Michigan
Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
Principal Investigator:Lázaro Aurélio Padilha Junior
Grantee:Lázaro Aurélio Padilha Junior
Principal investigator abroad: Steven Thomas Cundiff
Institution abroad: University of Michigan, United States
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:13/16911-2 - Advanced spectroscopy of novel nanomaterials, AP.JP

Abstract

Colloidal semiconductor nanomaterials form a class of materials that offers the possibility for studying the physics of highly confined electrons and open opportunities for applications on several areas. However, a number of important electronic phenomena occur on a ultra-short timescale, from hundreds of femtosecond to some picoseconds and their spectral behavior are hidden underneath the broad absorption and emission bands, due to the finite size distribution. Here we propose to use a multidimentional coherent spectroscopy technique, which allows for temporal and spectral resolution high enough to investigate processes such as electron-electron and electron-phonon interaction and multi-exciton dynamics in those materials. We will combine Prof. Cundiffs group's, which have developed this technique, large experience on coherent multidimentional spectroscopy with Prof. Padilha's group's experience on ultrafast spectroscopy of nanomaterials, to address fundamental questions concerning the electronic dynamics in novel these nanoparticles, whose band structure has been engineered to try to control the interactions described above. Finally, this project will help on the development of this technique at UNICAMP, which will be the first time this method is built in Latin America. (AU)

Articles published in other media outlets (13 total):
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Ultrafast Particle Interactions Could Help Make Quantum Information Devices Feasible 
Discovery of Ultrafast Particle Interactions Could Help Make Quantum Information Devices Feasible 
Ultrafast particle interactions could make quantum information devices feasible 
New Ultrafast Spectroscopy Method to Perceive Decoherence Process on Femtosecond Scale 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast particle interactions could help make quantum information devices feasible 
Ultrafast Particle Interactions Could Help Make Quantum Information Devices Feasible 
Ultrafast particle interactions could help make quantum information devices feasible 

Scientific publications
(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)
LIU, ALBERT; ALMEIDA, DIOGO B.; BAE, WAN-KI; PADILHA, LAZARO A.; CUNDIFF, STEVEN T. Simultaneous Existence of Confined and Delocalized Vibrational Modes in Colloidal Quantum Dots. Journal of Physical Chemistry Letters, v. 10, n. 20, p. 6144-6150, OCT 17 2019. Web of Science Citations: 2.
LIU, A.; ALMEIDA, D. B.; BAE, W. K.; PADILHA, L. A.; CUNDIFF, S. T. Non-Markovian Exciton-Phonon Interactions in Core-Shell Colloidal Quantum Dots at Femtosecond Timescales. Physical Review Letters, v. 123, n. 5 AUG 2 2019. Web of Science Citations: 3.

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