Synthesis, optical and morphological characterization of MPA-capped PbSe nanocrystals

Colloidally Prepared 3-Mercaptopropionic Acid Capped Lead Sulfide Quantum Dots

“…These QDs were prepared by reacting lead acetate with a basic solution (pH = 9) of 3-MPA before injecting a solution of Na 2 S and refluxing to grow QDs to different sizes. Similarly, 3-MPA capped PbSe QDs have been prepared by aqueous synthesis . 3-MPA capped PbS QDs have furthermore been prepared by ligand functionalization of pulsed laser deposited PbS QDs, and 3-MPA has been used to link PbS QDs to metal oxide surfaces .…”

“…Similarly, 3-MPA capped PbSe QDs have been prepared by aqueous synthesis. 37 3-MPA capped PbS QDs have furthermore been prepared by ligand functionalization of pulsed laser deposited PbS QDs, 38 and 3-MPA has been used to link PbS QDs to metal oxide surfaces. 39 Very recently, casting of colloidal 3-MPA capped PbS QDs was reported with detailed analysis of the resulting 3-MPA QD solids.…”

Effects of Reaction Parameters on the Growth and Optical Properties of PbSe Nanocrystals

“…They provide size-tuneable interband absorption and luminescence emission at technologically important infrared wavelengths including the best spectral region for biological tissue imaging [2,3]. Specifically, lead salt NCs have provided the platform to allow for the investigation of strong quantum confinement regimes which were previously impossible using NCs of groups II-VI or III-V compounds [4,5,6]. The lead salt NCs have large exciton Bohr radii with small electron and hole masses which imply large confinement energies.…”