Interfacial engineering with carbon–graphite–Cu_δNi_1−δO for ambient-air stable composite-based hole-conductor-free perovskite solar cells

Abstract

Fully-ambient-air processed HCF-PSCs based on carbon–graphite–CuδNi1−δO composites show not only efficient performance but also remarkably improved photo-, thermal-stability and long-term air stability.

Hole-Transport Management Enables 23%-Efficient and Stable Inverted Perovskite Solar Cells with 84% Fill Factor

“…This is because light or heat can induce the escape of organic compounds, halide ion migration or segregation from perovskites, leading to the formation of A-site and X-site vacancy defects [ 24 – 27 ]. Besides, migratory halide ions also can react with metal electrodes, generating metal halide compounds (such as AgI 2 − /AuI 2 − and AgCl 2 − /AuCl 2 − ) at heterointerfaces in a solar cell [ 28 – 31 ]. Quite remarkably, robust interfaces and manipulation of the perovskite active layer in the stacked PSC configurations are highly desirable [ 32 – 34 ].…”

Roles of Long‐Chain Alkylamine Ligands in Triple‐Halide Perovskites for Efficient NiOx‐Based Inverted Perovskite Solar Cells

“…OrganicÀinorganic halide perovskites (OIHPs) have been considered as the most potential next-generation photovoltaic (PV) materials to fabricate solution-processed, high-performance, and low-cost perovskite solar cells (PSCs). [1][2][3][4][5][6] PSCs have demonstrated an incredibly efficiency improvement from 3.8% up to 25.8% (certified power conversion efficiency (PCE) of 25.7%) in the shortest time, which has been considered as a milestone in the history of PV technology. [7,8] There is no doubt that this emerging PV technology has a great opportunity to compete with and conquer the existing other PV technologies and go for its commercialization in the near future.…”