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Nonlinear Spectroscopy in Perovskite Quantum Dots

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Autor(es):
Nagamine, Gabriel ; Bonato, Luiz Gustavo ; Castaneda, Juan A. ; Yassitepe, Emre ; Nogueira, Ana F. ; Brito Cruz, Carlos H. ; Padilha, Lazaro A. ; Rafailov, MK
Número total de Autores: 8
Tipo de documento: Artigo Científico
Fonte: ULTRAFAST BANDGAP PHOTONICS III; v. 10638, p. 7-pg., 2018-01-01.
Resumo

Since the first reports of their successful synthesis in 2015, all-inorganic perovskite quantum dots (PQDs), emerged as promising material for lighting applications. Despite their unique optical properties, to date, PQDs based LEDs and lasing media operation is still far from ideal. One of the limiting factors is the strong Coulomb interaction, which contributes to nonradiative decay processes. Here, we discuss in detail the multiexciton interactions in PQDs based on their size dependence. We expand on their nonlinear optical properties, focusing on the two-photon absorption characteristics, showing results for two-photon pumped amplified stimulated emission, suggesting that these materials may be promising for two-photon pumped lasers. (AU)

Processo FAPESP: 13/05798-0 - Investigacao de Nanoparticulas Coloidais de Calcopirita Tipo (Ag,Cu)(In,Ga)(S,Se)2 Passivadas para Aplicacoes em Celulas Solares de Filmes Finos
Beneficiário:Emre Yassitepe
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 13/16911-2 - Espectroscopia avançada em novos nanomateriais
Beneficiário:Lázaro Aurélio Padilha Junior
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores