Extended Data Fig. 1: Illustration of in-situ PL measurements during the formation of perovskite films.
From: Additive treatment yields high-performance lead-free perovskite light-emitting diodes
a, Spin-coating process. b, Annealing process.
Extended Data Fig. 1: Illustration of in-situ PL measurements during the formation of perovskite films. | Nature Photonics
