This dataset includes the data from the publication "Optimizing Carrier Balance in CsPbBr3 Nanocrystal LEDs: The Role of Alkyl Ligands and Polar Electron Transport Layers" by R. Jayabalan et al., along with a metadata file that relates the datasets to the corresponding figures in the paper. Data to: R. Jayabalan et al. "Optimizing Carrier Balance in CsPbBr3 Nanocrystal LEDs: The Role of Alkyl Ligands and Polar Electron Transport Layers." Adv. Optical Mater. (2025): e01361. https://doi.org/10.1002/adom.202501361