Carbonized polymer dots enhanced stability and flexibility of quasi-2D perovskite photodetector

ABSTRACT: Quasi-2D perovskites have been demonstrated to be competitive materials in the photodetection fields due to the enhanced moisture stability by large organic cations. However, as the increasing demands of modern technology, it is still challenging to combine the flexibility with the capability of weak light detection in a low-cost way. Here, amides, carboxylic acids, and anhydrides groups-rich carbonized polymer dots (CPDs) were employed to fill in the perovskite grain boundaries, which can passivate the point defects of perovskite by coordinating with the unbonded Pb atoms, and reduce the leakage current. Weak light detection capability was demonstrated by directly resolving light with an intensity of 10.1 pW cm−2. More importantly, the stretchable polymer chains on CPDs strongly interact

SUBMITTER: Tan M 

PROVIDER: S-EPMC9579173 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature