Electro-generated excitons for tunable lanthanide electroluminescence.

ABSTRACT: Lanthanide nanocrystals offer unique advantages for electroluminescence (EL) applications, including narrow-band emission, high colour purity and compositionally tunable output^1-4. However, their insulating nature poses a challenge for carrier transport and injection, impeding their application in electrically driven optoelectronic devices⁵. Here we demonstrate efficient EL from insulating lanthanide fluoride nanocrystals (4 nm; NaGdF₄:X; X = Tb³⁺, Eu³⁺ or Nd³⁺) coated with a series of functionalized 2-(diphenylphosphoryl)benzoic acids (ArPPOA). These ligands, featuring donor-phosphine oxide acceptor hybrids with carboxyl and P=O coordination sites, effectively sensitize the luminescence of lanthanide nanocrystals by modulat

SUBMITTER: Tan J 

PROVIDER: S-EPMC12629978 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature