Blade-coated perovskite nanoplatelet polymer composites for sky-blue light-emitting diodes.

ABSTRACT: Colloidal perovskite nanoplatelets (NPLs) have shown promise in tackling blue light-emitting diode challenges based on their tunable band gap and high photoluminescence efficiencies. However, high quality and large area dense NPL films have been proven to be very hard to prepare because of their chemical and physical fragility during the liquid phase deposition. Herein, we report a perovskite-polymer composite film deposition strategy with fine morphology engineering obtained using the blade coating method. The effects of the polymer type, solution concentration, compounding ratio and film thickness on the film quality are systematically investigated. We found that a relatively high-concentration suspension with an optimized NPL to polymer ratio of 1 : 2 is crucial for the suppression of p

SUBMITTER: Chen J 

PROVIDER: S-EPMC11318649 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature