Fig. 3: Effects of thermal stress on 2D/3D perovskite films with different spacers.
From: Stability of 2D and quasi-2D perovskite materials and devices
PL spectra (450 nm excitation) of fresh and aged (4 months) 2D/3D perovskite films for a 2-TMAI, b 3-TMAI, and c 2-TEAI–based 2D perovskite; PL spectra upon thermal stress (heating at 50 °C) of 2D/3D perovskite films for d 2-TMAI, e 3-TMAI, and f 2-TEAI–based 2D perovskite; g Illustration of the proposed interfacial mechanism. Reprinted with permission from ref. 43. Copyright 2020 Royal Society of Chemistry.
