Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈

I work with photons and electrons and their interaction in applied materials. #materialscience #stm #spm

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Just published in J. Phys. Chem. C! 🚀
We used a prototype PanScan Lumin STM to study cathodoluminescence in CdSe/ZnCdS quantum dots.
🔗 https://t.co/kaGPOyRhqJ
#nanotechnology #quantumdots

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

This work highlights new ways to probe carrier dynamics at the nanoscale and shows the power of STM setups that combine light injection + collection.
More on the PanScan Lumin: https://t.co/oBX1mpuZNw

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Just published in J. Phys. Chem. C! 🚀
We used a prototype PanScan Lumin STM to study cathodoluminescence in CdSe/ZnCdS quantum dots.
🔗 https://t.co/kaGPOyRhqJ
#nanotechnology #quantumdots

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

✨ Key insights:

~130 eV threshold for luminescence

Thin-shell QDs → multiexciton effects

Thick-shell QDs → single-exciton dominated

Prolonged exposure → blinking-like behavior

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Just published! 🚨
We show how molecular stiffness & steric hindrance of organic cations govern 2D/3D perovskite formation — impacting efficiency & stability.
CL-SEM & GIWAXS reveal key formation sites & crystallization paths.
☀️ PCE up to 21.5%!
#Perovskite #SolarCells #Nanotech

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

2D perovskite phases form preferentially at grain boundaries of 3D films — helping with defect passivation.
We tracked this in real-time via GIWAXS using cations with different flexibilities.
➡️ Flexible cations = better 2D growth = higher efficiency.
#MaterialsScience

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Physics is the science of 'how the world works', from stars to your morning coffee.

[Pablo Ares @pablerasares]

In my Thermodynamics classes in the Introductory Physics course I do an exercise on the operation of the Italian coffee maker to illustrate the ideal gas equation. When I saw this infographic in the @EuroPhysSoc news magazine I could do nothing but fall in love with it ❤️

[Pablo Ares @pablerasares]

📢📢 Postdoc Position
We're hiring! Join our ERC Starting Grant 🇪🇺 project on heat transport & defects in 2D materials. Important:
🔬 Hands-on experience designing, developing and assembling optical setups + Raman spectroscopy (preferably TERS)
All the info here 👇🏼 Please RT!

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Temos uma bolsa de Mestrado FAPESP para atuação em Nanotecnologia. O projeto trata do estudo de novos materiais via Microscopia de Varredura de Tunelamento associada a um sistema de injeção e coleção de luz.

https://t.co/QQtsYexj5d

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Our latest study shows WSe2 stays optically active on ITO, even after annealing, with tunable properties influenced by adsorbates. A big step for advanced heterostructures!

#2DMaterials #Optoelectronics #Innovation

https://t.co/bns5TAtaZI

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

Investigating the impact of ITO substrates on the optical and electronic properties of WSe_2 monolayers

In this paper we show the electronic and optical effects of ITO on WSe2 as studied by AFM, STS, KPFM, and PL. Check it out.

https://t.co/DyAuOXXTZ7 via @iopnano

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@diogo_torao Lembrando que esse é o governador 'técnico' e 'qualificado' que os bolsominions frustrados colocaram em São Paulo...

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@plouis @diogo_torao Verdade que não dá para montar nada. Ao mesmo tempo, precisamos pensar mais como grupos e menos como pesquisadores individuais. Acho triste essa filosofia tão comum de cada macaco no seu galho.

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@KamatlabND This is so crazy...

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@diogo_torao Vamos abrir um bar? Just thinking....

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@leandrotessler É mesmo a república de Curitiba.... um c#.

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@skdh This is very, very accurate and agrees with my view of academia. I am inside it, and I think it must reinvent itself to be more relevant for taxpayers.

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@leandrotessler @UFCSPA Eu também já 'esperei' que iniciativas desse tipo mas acho que o corporativismo fala sempre mais alto.

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

POV: To able to fly is the most amazing superpower.

Me: I would rather be able to acquire the knowledge of every paper I bookmark to read later just by bookmarking it.

[Luiz F Zagonel 🇧🇷🇫🇷🇬🇧 🔬❄️🌈 @lfzagonel]

@Olhar_Olimpico Acho que não é só no esporte que esse tipo de coisa acontece. Corporativismo é rei no Brasil. Se uma pessoa agir sozinha contra uma corporação, ela vai se prejudicar mesmo que esteja certa.