91ÖÆƬ³§

Education:

• PhD Chemistry, Northwestern University, 2021
• BS, ACS-certified Chemistry and Mathematics, Tufts University, 2016

Curriculum Vitae:

Download (PDF)

Research Interests:

• Inorganic materials chemistry
• Semiconductor nanoparticles
• Ultrafast spectroscopy and diffraction
• Crystallization, self-assembly, and phase transitions
• Optoelectronic properties

Bio:

Alexandra Brumberg is an Assistant Professor of Chemistry at 91ÖÆƬ³§. Her group’s research combines synthesis of low-dimensional semiconductor materials with steady-state and time-resolved optical spectroscopy and diffraction to understand and control dynamic structural processes, such as crystallization, self-assembly, and phase transitions. In doing so, her group aims to enable control over optoelectronic and other physico-chemical properties through an enhanced fundamental understanding of how electron and carrier dynamics are influenced by changes in structure.

Dr. Brumberg received a B.S. in ACS-certified Chemistry and Mathematics at Tufts University and a Ph.D. in Chemistry at Northwestern University, where she used ultrafast optical spectroscopy and x-ray diffraction to understand the photophysics of two-dimensional semiconductor nanoparticles. She completed postdoctoral training at UC Santa Barbara, where she applied her knowledge of semiconductor optical properties to elucidate structure/property relationships in low-dimensional metal halide perovskites. Recently, she was awarded an ACS Early Career Postdoctoral-Faculty Bridge Grant to support the development of structure/property relationships for white light emission in metal halide phosphors.

Selected Publications:

Photoinduced Phase Transitions:

• A. Brumberg, M. S. Kirschner, B. T. Diroll, K. R. Williams, N. C. Flanders, S. M. Harvey, A. A. Leonard, N. E. Watkins, C. Liu, E. D. Kinigstein, J. Yu, A. M. Evans, Y. Liu, S. A. Cuthriell, S. Panuganti, W. R. Dichtel, M. G. Kanatzidis, M. R. Wasielewski, X. Zhang, L. X. Chen, and R. D. Schaller. “Anisotropic Transient Disordering of Colloidal, Two-Dimensional CdSe Nanoplatelets upon Optical Excitation.” Nano Lett. 2021, 21 (3), 1288-1294.
• M. S. Kirschner, B. T. Diroll, P. Guo, S. M. Harvey, W. Helweh, N. C. Flanders, A. Brumberg, N. E. Watkins, A. A. Leonard, A. M. Evans, M. R. Wasielewski, W. R. Dichtel, X. Zhang, L. X. Chen, and R. D. Schaller. “Photoinduced, Reversible Phase Transition in All-Inorganic Perovskite Nanocrystals.” Nat. Commun. 2019, 10, 504.

Optoelectronic Properties of Metal Halide Perovskites:

• A. Brumberg, O. Kuklinski, G. T. Kent, E. E. Morgan, A. A. Mikhailovsky, T. A. Strom, M. L. Chabinyc, and R. Seshadri. “Tuning the Optical Absorption Edge of Vacancy-Ordered Double Perovskites through Metal Precursor and Solvent Selection.” Chem. Mater. 2024, 36 (19), 9625-9635.
• V. Morad, Y. Shynkarenko, S. Yakunin, A. Brumberg, R. D. Schaller, and M. V. Kovalenko. “Disphenoidal Zero-Dimensional Lead, Tin, and Germanium Halides: Highly Emissive Singlet and Triplet Self-Trapped Excitons and X-ray Scintillation.” J. Am. Chem. Soc. 2019, 141 (25), 9764-9768.

Semiconductor Nanoparticle Dynamics:

• A. Brumberg, N. E. Watkins, B. T. Diroll, and R. D. Schaller. “Acceleration of Biexciton Radiative Recombination at Low Temperature in CdSe Nanoplatelets.” Nano Lett. 2022, 22 (17), 6997-7004.
• A. Brumberg, S. M. Harvey, J. P. Philbin, B. T. Diroll, B. Lee, S. A. Crooker, M. R. Wasielewski, E. Rabani, and R. D. Schaller. “Determination of the In-Plane Exciton Radius in 2D CdSe Nanoplatelets via Magneto-Optical Spectroscopy.” ACS Nano, 2019, 13 (8), 8589-8596.
• A. Brumberg, B.T. Diroll, G. Nedelcu, M. E. Sykes, Y. Liu, S. M. Harvey, M. R. Wasielewski, and R. D. Schaller. “Material Dimensionality Effects on Electron Transfer Rates between CsPbBr3 and CdSe Nanoparticles.” Nano Lett. 2018, 18 (8) 4771-4776.