Gel permeation chromatography process for highly oriented Cs₃Cu₂I₅ nanocrystal film.

ABSTRACT: The emergence of green materials has attracted considerable attention in the field of optoelectronics. Copper-based lead-free metal halide (with a near-unity quantum yield) obtained from Cs₃Cu₂I₅ nanocrystals (NCs) can exhibit blue emission with a wavelength of 440 nm and provide outstanding stability for various applications. However, in practical applications, colloidal dispersion purity and film quality are inadequate toward a high-performance device. In this study, antisolvent-free gel permeation chromatography is used to purify Cs₃Cu₂I₅ NCs. The purified Cs₃Cu₂I₅ NCs exhibit a high photoluminescent quantum yield and provide a highly oriented single-crystal film. Density functional theory

SUBMITTER: Cheng YH 

PROVIDER: S-EPMC8931108 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature