Enhancing the CsPbBr3 PeLEC properties via PDMS/PMHS double-layer polymer encapsulation and high relative humidity stress-aging

We report a new two-layer polysiloxane (PMHS/PDMS) halide perovskite encapsulation approach that allows operation of perovskite light-emitting devices under high humidity (80% RH) conditions and improves their performance due to finite water diffusion.