Fig. 7: Potential future research directions for CsPbI3 solar cells.
From: Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
a Diagram of defects, passivated defects, and microstructure perturbation inside/on perovskite crystals. b Generic structure of perovskite solar cells. c Schematic of the blade coating technique. d Förster resonance energy transfer (FRET) between organic molecules and perovskite materials. The red and blue arrows represent low-energy (long wavelength) and high-energy (short wavelength) photons, respectively. S0, S1, and S2 refer to the ground state, lowest excited state, and a higher excited state, respectively.
