PbTe quantum dots highly packed monolayer fabrication by a spin coating method.

ABSTRACT: This study investigates the fabrication of large-area, highly-ordered monolayers of PbTe quantum dots (QDs) on TiO2/ITO substrate, using a fast, simple, and repeatable spin-coating technique. For the first time, a real monolayer (a layer with the height of a single QD) covering approximately 3 cm2 was successfully prepared, achieving a root-mean-square roughness (Rq) of 1.37 nm. The research systematically explores key parameters such as QD morphology, concentration, spin-coating conditions, substrate characteristics, wetting properties, and solvent effects to optimize thin film deposition. The findings reveal that the spin-coating method favors the formation of layers with spherical QDs (6-9 nm) over cubical QDs (10-13 nm). The findings highlight the significant influence of solvent evapo

SUBMITTER: Lyssenko S 

PROVIDER: S-EPMC11813154 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature