Microwave-facilitated crystal growth of defect-passivated triple-cation metal halide perovskites toward efficient solar cells

Abstract

Structural defects at the surface and the bulk of perovskite films hinder efficient energy conversion in solar cells due to the loss of charge carriers through non-radiative recombination. Post-passivation approaches...

Improvement of Stability and Optoelectronic Properties of Blue-Emitting Perovskite Nanoplatelets by Microwave Treatment

“…The thermal annealing can easily lead to the structural collapse of perovskite. Among the numerous optimization methods, noncontact electromagnetic wave post-treatment, such as UV and microwave annealing, showed simple but excellent performance. − The improper use of UV light will bring irreparable damage to the perovskite owing to the shallow penetration depth. Meanwhile, for the microwave treatment, it has a long penetration depth, and most of the lattice defects, especially vacancy defects, can be suppressed instantaneously.…”