Polymer Additive Assisted Fabrication of Compact and Ultra-Smooth Perovskite Thin Films with Fast Lamp Annealing

Abstract

Perovskite solar cells (PVSC) have drawn increasing attention due to their high photovoltaic performance and low-cost fabrication with solution processability. A variety of methods have been developed to make uniform and dense perovskite thin films, which play a critical role on device performance. Herein, we demonstrate a polymer additive assisted approach with Polyamidoamine (PAMAM) dendrimers to facilitate the growth of uniform, dense, and ultra-smooth perovskite thin films. Furthermore, a lamp annealing approach has been developed to rapidly anneal perovskite films using an incandescent lamp, resulting in comparable or even better device performance compared to the control hotplate annealing. The facile polymer additive assisted method and the rapid lamp annealing technique offer a clue for the large-scale fabrication of efficient PVSCs.

Fabrication strategies for high quality halide perovskite films in solar cells

“…Shaik et al used PAMAM as an additive to prepare the precursors. 86 The amine functional groups of PAMAM could chelate with Pb 2+ in the precursor solution and inhibit the nucleation and growth of the perovskite along the (110) direction, which influenced the crystallization kinetics of the MAPbI 3 perovskite. Narendhiran et al reported a method of using PVDF-HFP as an additive.…”

Recent Advances in Functional Polymer Materials for Energy, Water, and Biomedical Applications: A Review

“…Silicon solar cells are widely used, but there is considerable research being done with the aim of providing less expensive solar cells, such as polymer solar cells and perovskite solar cells. [94][95][96][97].…”