Figure 3: Photoluminescence response of perovskite films on different substrates.
From: Conjugated polyelectrolyte hole transport layer for inverted-type perovskite solar cells
(a) Steady-state PL spectra and (b) time-resolved PL decay transients of perovskite films on different substrates. PL decay transients were collected at 770 nm for all films in vacuum after excitation at 405 nm.
