A. G. Macedo
is currently Professor at the Physics Department of UTFPR-Brazil. In this page you can find informations about publications, research projects and news. Our research interests are currently focused on the sustainable design and development of organic photovoltaics and/or energy harvesting devices assembled from new copolymers and electron donator/acceptor molecules, as well as optical and electrical properties of these materials. The researcher keeps her great interest in lanthanides, the use of atomic force microscopy to probe effects of solvents or thermal annealing in polymeric thin films and new techniques to process polymer thin films in large areas, such as roll-to-roll method.
You can contact me anytime to explore possibilities for collaborations and opportunities !
New facilities at NANOTEC-NEO Laboratory:
The video above shows luminescent Tb3+ complexes with high emission quantum yield produced at the Chemistry Department-UFPR at the researchgroup coordinated by Prof. Jaisa Soares. The optical features have been characterized at the Phantom-g Research Group (UA) coordinated by Prof. Luis Dias Carlos and Prof. Rute Ferreira.
The video above shows a flexible polymer based electrochromic device produced at the NANOTEC-NEO. The curve shows the variation of color along the time upon variable applied voltage.
Nanotec-Neo no SBPMAT-2019
Horário: 13 h 30 min Sala: C-301
Título: Complexos luminescentes baseados em Tb3+ com alto rendimento quântico.
New paper published :
NETO, ALFREDO LEITHOLD ; SCALON, LUCAS ; OCTAVIO DE ARAUJO, LUIS ; LOPES DE ARAÚJO, FRANCINEIDE ; SPADA, EDNA REGINA ; PEREIRA DA CUNHA, MARIANA RICHELLE ; DESORDI, JAQUELINE CRISTINE ; BARRETO, RAFAEL CARVALHO ; MACEDO, ANDREIA GERNISKI ; FARIA, ROBERTO MENDONÇA ; RODRIGUES, PAULA CRISTINA . New insights into DPP3Th and C70 based planar solar cells: a study combining DFT and experimental approach. MATERIALS CHEMISTRY AND PHYSICS, v. 262, p. 124271, 2021.
In this work, small molecule-based solar cells were produced with a solution-processed diketopyrrolopyrrole-terthiophene (DPP3Th) as electron donor material and thermally evaporated fullerene (C70) film as acceptor material.
Defesa de mestrado: Sara Luiza Gusso
New paper published: In this work, high efficiency and photo-stable Tb3+ complexes were reported. Moreover, a theoretical modelling showed the energy transfer rates along the singlet and triplet states from ligand to Tb3+pathways.
New paper accepted:
Reduced graphene oxide and perylene derivative nanohybrid as multifunctional interlayer for organic solar cells" by Leticia Patricio Christopholi, Mariana Richelle Pereira da Cunha, Edna Regina Spada, Anderson E. X. Gavim, Fabio Seiti Hadano, Wilson José da Silva, Paula Cristina Rodrigues, Andreia Gerniski Macedo, Roberto Mendonça Faria, Jeferson Ferreira de Deus, Synthetic Metals, 2020.
Congratulations Leticia :-)
Mini-Curso online - Tópicos de Física do Estado Sólido
Datas: sextas-feiras as 17:30 - duração 30-40 min
Google classroom: ux4p4d4
Tema 1 - Teoria de Sommerfeld para metais [início sexta - 24/04]
Tema 2 - Tipos de sólidos e simetria
Tema 3 - Teoria de Bandas
Tema 4 - Polímeros Conjugados
Tema 5 - Interações Elementares (fônons, Coulomb, spin-spin, excitons e eletron-fônon)
Obs.: os alunos receberão certificado de participação
Highlight: New paper published at Nature Photonics:
VASILOPOULOU, M. ; KIM, H. P. ; KIM, B. S. ; PAPADAKIS, M. ; GAVIM, ANDERSON E.X. ; MACEDO, ANDRÉIA G. ; DA SILVA, WILSON JOSÉ ; SCHNEIDER, F. K. ; TERIDI, M. A. M. ; COUTSOLELOS, A. G. ; YUSOFF, A. R. B. M. . Efficient colloidal quantum dot light-emitting diodes operating in the second near-infrared biological window. Nature Photonics, 2019
Some pictures from NANOTEC-NEO Research Laboratory (nov/2019). Credits: Sara and Jaqueline
Prof. Jeferson Ferreira de Deus joined to Nanotec-Neo research Laboratory. Be welcome prof. Jeferson !!!
A review about perylene derivatives was published at the Journal of Materials Science: Materials in Electronics
A. G. Macedo et al. Perylene derivatives for solar cells and energy harvesting: a review of materials, challenges and advances
Brain maps and PMI, let's do it!!!
New paper accepted: A. R. B. M. YUSOFF, ANDERSON E. X. GAVIM, A. G. Macedo, W. J. Silva, F. K. SCHNEIDER, M. A. M. TERIDI, High-Efficiency, Solution-Processable, Multilayer Triple Cation Perovskite Light Emitting Diodes with Copper-Sulfide Gallium-Tin-Oxide Hole-Transport Layer and Aluminium Zinc Oxide doped Cesium Electron-Injection Layer. Materials Today Chemistry, 2018.
Prof. Andreia during her visit in Cambridge (may/2018). During this stay, works related with the project about conjugated nanoparticles were performed.
The event "Parents in Science"occurred between 10-11/05/18 at PUC-RS in Porto Alegre. Prof. Andreia attended this event and support the ideas discussed during these 2 days. The maternity has effect on the researchers carrier's and this must be take in count during the evaluation of projects. The link about this initiative can be found below:
Encontros Serrapilheira - evento presencial no Jardim Botânico - Rio de Janeiro - novos horizontes e esperança para a Ciência no Brasil!
First master dissertation from Graduate Program in Physics and Astronomy (PPFGA-UTFPR), congratulations Anderson!
Instituto Serrapilheira seleciona projetos da UTFPR!