Rate My Professor Lea Nienhaus

Lea Nienhaus is an Associate Professor of Chemistry with joint appointments in the departments of Physics & Astronomy, Materials Science & NanoEngineering, and Chemical & Biomolecular Engineering at Rice University. She joined Rice in 2024 as a Norman Hackerman-Welch Young Investigator and Rice Advanced Materials Institute Fellow. Previously, she was an Assistant Professor in the Department of Chemistry at Florida State University from 2018 to 2024. Nienhaus conducted her postdoctoral research from 2015 to 2018 in the laboratory of Prof. Moungi Bawendi at the Massachusetts Institute of Technology, where she explored photon upconversion. She earned her Ph.D. in Chemistry in 2015 from the University of Illinois at Urbana-Champaign under Prof. Martin Gruebele, investigating single-molecule absorption spectroscopy of nanomaterials via scanning tunneling microscopy. Her undergraduate training culminated in a B.Sc. in Chemistry from Universität Ulm, Germany, in 2010.

Nienhaus's research investigates the intricate structure-property relationships governing light-matter interactions in photovoltaic materials through integrated scanning probe microscopy and optical spectroscopy techniques. Her group examines solid-state perovskite-sensitized photon upconversion, triplet generation processes at perovskite-organic interfaces, and the effects of nanoscale disorder in perovskites, organic semiconductors, and hydrogen-bonded supramolecular networks. This interdisciplinary work spans chemistry, physics, materials science, and engineering. She has earned numerous accolades, including the 2025 ACS ENFL Outstanding Early-Career Investigator Energy Lectureship Award, the 2024 Alfred P. Sloan Fellowship, the 2024 ACS PHYS Journal of Physical Chemistry C Lectureship Award, the 2023 Camille Dreyfus Teacher-Scholar Award, the 2023 NSF CAREER Award, and the 2023 Grammaticakis-Neumann Award. Key publications encompass "Lead the Way: Halide Perovskites as Next-Generation Triplet Sensitizers for Photon Upconversion" (Chemical Reviews, 2025), "Controlling the Fate of Two Triplet States: Solid-State Annihilator Design for Photon Upconversion" (Chemical Science, 2026), and "Advances in Spectro-Microscopy Methods and their Applications in the Characterization of Perovskite Materials" (Advanced Materials, 2024). Her scholarship has amassed nearly 5,000 citations, underscoring her influence in nanomaterials, photon upconversion, perovskites, excitonics, and energy transfer.