Boosting Electronic Properties of CsPbBr₃ Nanocrystals via Lithium-Ion Doping and Surface Passivation for Enhanced Electrical Conductivity and Efficient White Light-Emitting Diodes.

ABSTRACT: Lithium's interaction with CsPbBr₃ nanocrystals (NCs), can enhancing its intrinsic electrical conductivity (σ) for high-performance device applications. Herein, two distinctly different modes of Li⁺ interaction with CsPbBr₃ NCs: minor lattice insertion (0.07% relative to Cs) and predominant surface passivation is reported through Li_mPb_n alloy formation. In contrast, Li⁺ exhibits significantly reduced interaction with Cs₄PbBr₆ NCs, which could be due to the persence of lower amount of Pb²⁺ on the surface of these structures. The σ of CsPbBr₃:xLi⁺ NCs through bottom-contact devices exhibited a gradual increase from 2.1 × 10^-7 to as high as 2.5 × 10^-6 S m^-1, whic

SUBMITTER: Ge Z 

PROVIDER: S-EPMC12302538 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature