Anilino-carbazole-based D-π-D'-π-D blue light material coordinated exciplex for achieving white light dynamic regulation.

ABSTRACT: An exciplex white light system that can simplify the structure of a device has become an important driving force for the industrialization of white organic light-emitting devices (WOLEDs). Two D-π-D'-π-D-type blue light materials, CzPAF-DPA and CzPAF-DF, based on a core aniline-based carbazole and 9,9-dibutylfluorene as a π bridge with two peripheral donors with varying degrees of conjugation were successfully synthesized by Buchwald-Hartwig amination. Both materials emit blue light and are thermally stable, with thermal decomposition temperatures (T _d) of 408 and 418 °C, respectively. The electroluminescence (EL) spectra of both CzPAF-DPA and CzPAF-DF represented broad-band emission with two primary emission peaks. The shorter-wavelength peaks located at 424/428 nm corre

SUBMITTER: Xie X 

PROVIDER: S-EPMC12570000 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature