The Physics Graduate Program invites everyone to:
Qualifying Examination for Doctoral Thesis
Lindiomar Borges de Avila Junior
RESISTIVE SWITCHING USING LIQUID CRYSTALS AS ACTIVE LAYER
Defense Committee:
Prof. Dr. Ivan Helmuth Bechtold (president) – UFSC/FSC
Profª. Drª. Maria Luisa Sartorelli (titular member) – UFSC/FSC
Profª. Drª. Juliana Eccher (titular member) – UFSC/FSC
Prof. Dr. Luis Guilherme de Carvalho Rego (titular member) – UFSC/FSC
Prof. Dr. Eduard Westphal (external member) – UFSC/QMC
Prof. Dr. Gustavo Nicolodelli (supplementary member) – UFSC/FSC
Date: November 11,2022 – Friday – Times: 8:30am – Place: Sala 114 – Sala de Reuniões do Departamento de Física
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
Marcos Vinicios Barp
POSITRON SCATTERING BY OPEN-SHELL ATOMS AND MOLECULES
Defense Committee:
Prof. Dr. Felipe Arretche (president) – (UFSC/FSC)
Prof. Dr. Wagner Tenfen (external member) – UFPEL
Prof. Dr. Roberto Kalbusch Saito (local member) – UFSC/FSC
Prof. Dr. Tiago José Nunes da Silva (local member) – UFSC/FSC
Prof. Dr. José Rafael Bordin (supplementary member) – ICE/UFMG
Prof. Dr. Kahio Tiberio Mazon (supplementary member) – UFSC/FSC
Date: November 11, 2022 – friday – Times: 2:00 pm – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)
Virtual room access link: https://conferenciaweb.rnp.br/conference/rooms/felipe-99/invite
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Analytically Solvable Problems in Quantum Mechanics and SWKB Quantization Condition
Yuta Nasuda
Tokyo University of Science
Abstract:
The Schrödinger-type equation appears not only in quantum mechanics but also in every corner of physics. It has long been studied what the basic feature of solvable potentials is, and how one solves the equation with those potentials analytically. Today we know infinitely many solvable potentials, but we still have no whole notion of the solvability of the Schrödinger equation. In this seminar, we first review several essential concepts in the solvability of the Schrödinger equation: factorization of Hamiltonian, shape invariance, and so on. Then we introduce the SWKB quantization condition, which is relevant to the solvability of the Schrödinger equation. We apply the condition to several solvable problems and show how they are closely connected.
Date: November 11, 2022 – (friday) – Time: 10:15 a.m.
Local: Auditório do Departamento de Física
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Optical spectroscopy: from a luminescent molecule to working OLED devices
MSc Larissa Gomes França
Department of Physics , Durham University – UK
Abstract:
Organic light-emitting diodes (OLEDs) have attracted tremendous interest from the luminescent display industry over the last years. Nowadays, this technology is already a part of peoples’ lives as being used in everyday items such as in mobile phones and televisions. Using organic semiconductors instead of the more traditional inorganic (i.e. GaN, InGaN, GaAs, etc.) introduces many technological advantages. Among them are flexibility, very low thickness of final luminescent displays as well as possibility to produce transparent displays and luminaries. In an OLED device, applied voltage bias induces injection of electrons and holes through the device cathode and anode, respectively. The charge carriers are transported through the device and migrate to the emissive layer where they recombine, generating light. Spin statistics based on the spin states of holes and electrons undergoing recombination leads to a 1:3 ratio between multiplicities of thus produced excited states: singlets and triplets. Considering that often triplet states do not contribute to the luminescent output of an OLED the efficiency of these devices becomes limited to 25% of what it could be. Mechanisms that enable turning non-emissive triplet states into luminescent singlets will be discussed in this talk. Key parameters to maximise efficiency of these mechanisms allowing 100% utilisation of all electron-hole recombination will also be covered.
Date: November 4, 2022 – (friday) – Time: 10:15 a.m.
Local: Auditório do Departamento de Física
The Graduate Program in Physics of UFSC makes public the admission process’s notice to the Master and PhD programs entrance at the semester 2023/1.
Registration will be made up October 31, 2022 until 5 pm on November 18, 2022, The PPGFSC regards the grade of the Brazilian Unified Exam of Physics Graduate Courses (Exame Unificado de Pós-Graduações em Física – EUF) to the entrance at the master and PhD programs.
Click here to access the admission process website of the PPGFSC/UFSC
