Fig. 4: Spectrum measurements of different light sources using the PQDF spectrometer.
From: Broadband perovskite quantum dot spectrometer beyond human visual resolution
Spectra reconstruction of a, blue, green, red and near-infrared LEDs; (b) a white LED; and (c) a halogen lamp. The ground-truth spectrum is indicated by the shading, and the black solid curves correspond to our spectrometer measurements
