Researchers at the Georgia Institute of Technology have demonstrated a novel approach aimed at addressing perovskite’s durability problem: encasing the perovskite inside a double-layer protection system made from plastic and silica.
The research team developed a multi-step process to produce encased perovskite nanocrystals that exhibit strong resistance to degradation in moist environments.
Researchers at the Massachusetts Institute of Technology (MIT) have improved a transparent and conductive coating material by increasing its electrical conductivity by 10 times. When this coating material was integrated into a perovskite solar cell, it boosted the stability and efficiency of the solar cell.
“The goal is to find a material that is electrically conductive as well as transparent,” explained the team, which would be ‘“useful in a range of applications, including touch screens and solar cells.”
Scientists at Duke University have used their electronic structure based materials modeling software on a supercomputer to help demonstrate the advantages of incorporating organic building blocks into hybrid perovskites.
The models showed that the new materials feature improved stability and safety while exhibiting a “quantum well” behavior that can improve the performance of optoelectronic devices such as solar cells, LEDs and optical computers, making the hybrid perovskites more attractive for use in a broad range of applications.
Researchers at Saudi Arabia’s King Abdullah University of Science and Technology have demonstrated a method that could improve the stability of perovskite solar cells. The group found adding an organic dopant served to increase the strength of chemical bonds between organic and inorganic elements of a perovskite.
Stabilizing perovskite solar cells would solve a key issue that s currently delaying commercialization of PSCs and could provide a more comprehensive solution than other approaches which center on managing perovksite’s inherent instability in the atmosphere by encapsulating them. Another recent study, from Rice University in the United States, found adding indium in an all-inorganic perovskite limited defects and improved stability.
A research team led by Prof. GAO Peng from Fujian Institute of Research on the Structure of Matter of the Chinese Academy of Sciences has developed high-performance perovskite solar cells with enhanced environmental stability.
The team reported a 2-(4-fluorophenyl)ethylamine (FPEA: 4-FC6H4C2H4NH3) bulky cation to grow a 2D perovskite overlayer on the top of the Cs/FA/MA triple-cation 3D perovskite to combine the high stability of 2D perovskite with high efficiency of 3D perovskite simultaneously.