Bryan Rosales is a postdoctoral researcher in the Chemistry and Nanoscience Center at NREL in Lance Wheeler’s group. At NREL, he synthesizes novel chromogenic materials and develops switchable photovoltaic windows.

Rosales received an associate's degree from Columbus State Community College in 2011 and then a bachelor's degree in chemistry from The Ohio State University in 2013, where he performed undergraduate research with Professor Anne Co developing Sn anodes for lithium-ion batteries. He then received his doctorate in chemistry from Iowa State University in 2019 under the guidance of Professor Javier Vela. His graduate research focused on determining how different synthetic methods affect phase-segregation in metal halide perovskites by 207Pb ssNMR, developing the low-temperature synthesis of colloidal semiconductor nanocrystals based on earth-abundant and environmentally friendly elements, and fabricating solar cells based on binary and ternary chalcogenide colloidal semiconductor nanocrystals.

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Research Interests

Synthesis, optoelectronic properties, and surface chemistry of low-dimensional materials

Switchable photovoltaics

Quantum dot solar cells


Ph.D., Chemistry, Iowa State University

B.A., Chemistry, Ohio State University

A.S., Science, Columbus State Community College

Professional Experience

Mentor, U.S. Department of Energy’s Science Undergraduate Laboratory Internship (SULI) program, NREL (2019–2021) 

Mentor, SULI Program, Iowa State University (2016–2017) 

Session Chair, ACS Midwest Regional Meeting held at Iowa State University (2018)

Peer Mentor, Graduate College Mentoring Program for First Year Students of Color, Iowa State University (2017–2018)

Faculty Search Committee Member, Iowa State University Department of Chemistry (2017)

AGEP-NSF Research Fellow, Iowa State University (2015–2018)

Visiting Researcher, University of Bonn, Germany (2014)

Visiting Researcher, National Tsing Hua University, Taiwan (2013–2014)

Visiting Researcher, National Taiwan University, Taiwan (2013) 

Featured Work

Reversible Multicolor Chromism in Layered Formamidinium Metal Halide Perovskites, Nat. Commun. (2020)

Solution-Grown Sodium Bismuth Dichalcogenides: Toward Earth Abundant, Biocompatible Semiconductors, J. Am. Chem. Soc. (2018)

Synthesis and Mixing of Complex Halide Perovskites by Solvent-Free Solid-State Methods, J. Solid. State Chem. (2019)

Sensitivity-Enhanced 207Pb Solid-State NMR Spectroscopy for the Rapid, Non-Destructive Characterization of Organolead Halide Perovskites, Chem. Mater. (2018)

Lead Halide Perovskites: Challenges and Opportunities in Advanced Synthesis and Spectroscopy, ACS Energy Lett. (2017)

Persistent Dopants and Phase Segregation in Organolead Mixed-Halide Perovskites, Chem. Mater. (2016)


Switchable Photovoltaic Devices, Nonprovisional Patent 16/986,234 (2020)

Solid Phase Synthesis of Hybrid Lead Halide Perovskites with Superior Purity, Nonprovisional Patent 15/854,596 (2017) 

Awards and Honors

Iowa State University Research Excellence Award (2019)

American Chemical Society National Division of Inorganic Chemistry Travel Award (2019)

Best Oral Presentation Winner, Nano@IAState Conference (2018)

Witiak Fellowship, Iowa State University (2018)