Simplified CV

Greis J. Kim Reyes, Ph.D.

(Greis J. Cruz Reyes)

Education

• 2017-2024 Ph.D. in Physics

  • University at Buffalo, SUNY, Buffalo, New York, US
    • Thesis: Defect-Enable Novel Properties: Photocatalyst, Intermediate Band Semiconductors and Magnetism

• 2010-2014 Master in Science: Physics

  • Universidad Nacional de Colombia, Bogotá, Colombia
    • Thesis: Diagrama de Fases de Átomos Bosónicos Sujetos a Confinamiento no Diagonal

• 2004-2010 Bachelor’s Degree: Physics-Education

  • Universidad Distrital Francisco José de Caldas, Bogotá, Colombia

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Academic Experience

2024 - present Assistant Professor of Physics

• SUNY New Paltz, Department of Physics and Astronomy

2017-2023 Teaching Assistant

• University at Buffalo, SUNY, Buffalo, New York, US

2013-2017 Assistant Professor of Physics

• Universidad Santo Tomás, Bogotá, Colombia

2012-2014 Adjunct Professor of Physics and Mathematics

• Universidad Distrital Francisco José de Caldas, Bogotá, Colombia

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Research Experience

2019-2024 Doctoral Researcher

• SUNY Buffalo.

• Key projects:

• Intermediate Band semiconductors for solar cell technology
• Jahn-Teller effect on CdS doped with Ni
• Excitonic properties of 2D C₃N and C₃B alloys

2015-2017 Research Assistant

• Universidad Nacional de Colombia.
• Group of Correlated Systems (SISCO)
• Ground state phase diagrams of Bosonic systems in one dimension using DMRG

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Selected Publications

Giant Narrow-Band Optical Absorption and Distinctive Excitonic Structures of Monolayer C₃N and C₃B
Z. Tang, G. J. Cruz, Y. Wu, W. Xia, F. Jia, W. Zhang, P. Zhang - Physical Review Applied, 2022

Giant Excitonic Effects in Vacancy-Ordered Double Perovskites
F. Zhang, W. Gao, G. J. Cruz, Y. Sun, P. Zhang, J. Zhao - Physical Review B, 2023

Quasiparticle Band Structures of the 4d Perovskite Oxides SrZrO₃ and BaZrO₃
G. Lopez-Candales, Z. Tang, G. J. Cruz, W. Xia, F. Jia - Physical Review B, 2021

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Awards

1. Bahethi Scholarship, SUNY Buffalo, Buffalo, New York (2022)
2. Silvestro Scholarship, SUNY Buffalo, Buffalo, New York (2022)
3. Marshall Plan Foundation, Johannes Keppler Universität, Linz, Austria (2018)

Languages

1. Spanish (Native)
2. English
3. Korean (Enthusiast)

…and now a poem 🎀

Boo wakes me up with no regret,
she purrs like motors finely set.
A loaf, a blob, a drama queen, 👑
The softest tyrant ever seen.
Yet still I coo, "My little Boo", 💕
Though technically, she pays no due.
So useless, but love like that?
It only comes with one dummy cat.

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