Boosting the Performance of Photomultiplication-Type Organic Photodiodes by Embedding CsPbBr₃ Perovskite Nanocrystals.

ABSTRACT: In this study, it is demonstrated that CsPbBr₃ perovskite nanocrystals (NCs) can enhance the overall performances of photomultiplication-type organic photodiodes (PM-OPDs). The proposed approach enables the ionic-polarizable CsPbBr₃ NCs to be evenly distributed throughout the depletion region of Schottky junction interface, allowing the entire trapped electrons within the depletion region to be stabilized, in contrast to previously reported interface-limited strategies. The optimized CsPbBr₃ -NC-embedded poly(3-hexylthiophene-diyl)-based PM-OPDs exhibit exceptionally high external quantum efficiency, specific detectivity, and gain-bandwidth product of 2,840,000%, 3.97 × 10¹⁵ Jones, and 2.14 × 10⁷  Hz, respectively. 2D grazing-incidence

SUBMITTER: Kang M 

PROVIDER: S-EPMC10870029 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature