Scalable PbS Quantum Dot Solar Cell Production by Blade Coating from Stable Inks.

ABSTRACT: The recent development of phase transfer ligand exchange methods for PbS quantum dots (QD) has enhanced the performance of quantum dots solar cells and greatly simplified the complexity of film deposition. However, the dispersions of PbS QDs (inks) used for film fabrication often suffer from colloidal instability, which hinders large-scale solar cell production. In addition, the wasteful spin-coating method is still the main technique for the deposition of QD layer in solar cells. Here, we report a strategy for scalable solar cell fabrication from highly stable PbS QD inks. By dispersing PbS QDs capped with CH₃NH₃PbI₃ in 2,6-difluoropyridine (DFP), we obtained inks that are colloidally stable for more than 3 months. Furthermore, we demonstrated that DFP yie

SUBMITTER: Sukharevska N 

PROVIDER: S-EPMC7863069 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature