Luciana Florêncio de Almeida

Escola Superior de Propaganda e Marketing Brazil

Luciana Florêncio de Almeida holds a PhD in Business Economics from FEA / USP with Post Doctorate at Technische Universität München, in Germany at the Department of International Agribusiness. She holds a master degree in business administration from UFLA, Minas Gerais, Brazil. He attended as a visiting researcher in the Department of Agricultural Economics at the University of Missouri, USA and in the Chair of Food and Agribusiness at the University of Macerata, Italy. She is currently full professor and coordinator in the Consumer Behavior Master Program at ESPM. Her research interests are in the marketing area, based specially on Agribusiness, Food, Strategy, Alliances, Long Term Relationships and Relationship Marketing.

1chapters authored

Chapters authored

Valley Polarized Single Photon Source Based on Transition Metal Dichalcogenides Quantum Dots

By Fanyao Qu, Alexandre Cavalheiro Dias, Antonio Luciano de Almeida Fonseca, Marco Cezar Barbosa Fernandes and Xiangmu Kong

Photonic quantum computer, quantum communication, quantum metrology, and optical quantum information processing require a development of efficient solid‐state single photon sources. However, it still remains a challenge. We report theoretical framework and experimental development on a novel kind of valley‐polarized single‐photon emitter (SPE) based on two‐dimensional transition metal dichalcogenides (TMDCs) quantum dots. In order to reveal the principle of the SPE, we make a brief review on the electronic structure of the TMDCs and excitonic behavior in photoluminescence (PL) and in magneto‐PL of these materials. We also discuss coupled spin and valley physics, valley‐polarized optical absorption, and magneto‐optical absorption in TMDC quantum dots. We demonstrate that the valley‐polarization is robust against dot size and magnetic field, but optical transition energies show sizable size‐effect. Three versatile models, including density functional theory, tight‐binding and effective k⋅p method, have been adopted in our calculations and the corresponding results have been presented.

Part of the book: Quantum-dot Based Light-emitting Diodes

Luciana Florêncio de Almeida

Chapters authored

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