Perovskite Curable Composition Antioxidant Heat Stability

The patent introduces antioxidants (such as phenolic antioxidants, amine antioxidants, or their combinations) as intermediary substances that mediate between the perovskite compound and heat exposure. These antioxidants act as heat protection agents that absorb or mitigate the harmful effects of heat on the perovskite compound, thereby maintaining the quantum yield while exposing the film to heat during storage or operation.

The patent modifies the chemical composition parameters of the curable system by selecting specific photopolymerizable compounds (acrylates, vinyl monomers), photopolymerization initiators (photoinitiators for UV or visible light curing), and antioxidants with particular structures. By changing these compositional parameters, the film achieves both high initial quantum yield and improved heat resistance, allowing the quantum yield to be maintained under heat exposure.

The patent creates a composite curable composition that integrates perovskite compounds with photopolymerizable compounds, photopolymerization initiators, and antioxidants. This composite formulation combines the high light-emitting efficiency of perovskites with the thermal stability provided by the polymer matrix and antioxidant protection, resulting in a film that maintains both productivity (light-emitting efficiency) and compositional stability under thermal conditions.

The patent applies antioxidants in advance as a protective measure before heat exposure occurs. These antioxidants are incorporated into the curable composition formulation prior to film formation and curing, providing pre-established protection against thermal degradation. This beforehand cushioning ensures that when the film is subsequently exposed to heat during storage or operation, the perovskite compound's quantum yield and compositional stability are preserved.