In-situ growth of low-dimensional perovskite-based insular nanocrystals for highly efficient light emitting diodes.

ABSTRACT: Regulation of perovskite growth plays a critical role in the development of high-performance optoelectronic devices. However, judicious control of the grain growth for perovskite light emitting diodes is elusive due to its multiple requirements in terms of morphology, composition, and defect. Herein, we demonstrate a supramolecular dynamic coordination strategy to regulate perovskite crystallization. The combined use of crown ether and sodium trifluoroacetate can coordinate with A site and B site cations in ABX₃ perovskite, respectively. The formation of supramolecular structure retard perovskite nucleation, while the transformation of supramolecular intermediate structure enables the release of components for slow perovskite growth. This judicious control enables a segmented gr

SUBMITTER: Wang H 

PROVIDER: S-EPMC9984476 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature